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(chatquestion)...27. A ball is projected at the lowest position of a smooth vertical tube as shown in the figure. The minimum speed at the lowest point, so that the ball just reaches at point 'P, is -3gR %3D 30 (2) 6gR V5gR (4) VgR (3) 3gR
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telegram-47044
asked
Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...Consider a spherical gaseous cloud of mass density p(r) in free space wherer is the radial distance from its center. The gaseous cloud is made of particles of equal mass m moving in circular orbits about the common center with the same kinetic energy K. The force acting on the particles is their mutual gravitational force. If p(r) is constant in time, the particde number density n(r) = p(r)/m is [G is universal gravitational constant] 1. (2019) ЗК K (A) Tr'm?G (B) 2nr2m G K. (C) 6xr?m?G K (D) Tr'm?G
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telegram-47041
asked
Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...(0) 6Tr?m?G (B) Tr?m?G A rocket is launched normal to the surface of earth, away from the Sun, along the line joining the Sun and the Earth. The Sun is 3 x 10° times heavier than the Earth and is at a distance 2.5 x10 times larger than the radius of the Earth. The escape velocity from Earth's gravitational field is Ve = 11.2 km s'. The minimum initial (v.) required for the rocket to be able to leave the Sun-earth system is closest to (Ignore the rotation and revolution of the Earth and the presence of any other planet) (A) vs = 22 kms (C) Vs = 62 kms 2. (2017) (B) vs = 42 kms' (D) vs = 72 km s'
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telegram-47038
asked
Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...70. Cry-I endotoxins obtained from Bacillus thuringiensis are effective against [CBSE AIPMT 2008] 46) flies (d) bollworms (a) mosquitoes (c) nematodes
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telegram-47030
asked
Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...23)YTHE common nitrogen-fixer in paddy fields is [CBSE AIPMT 2010 10) Azospirillum Sym (d) Frankia (a) Rhizobium (c) Oscillatoria
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telegram-47009
asked
Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...2 tano (sin 0 + cos 0) 2. (3) Zero (4) mg A block of mass 4 ka placed on a horizontal surface is connected to another mass of 3 kg by a massless inextensible string going over a pulley as shown.A force ofF = 50 N is applied horizontally on A as shown. At the instant, e is 60° and the blocks are at momentary rest. The tension in the string is (take g = 10 m/s?) 88. me ter m E1OS 3kg 4 kg 0 = 60° F = 50 N+ (1) 41.05 N (2) 40 N (3) 35.72 N ebil (4) 53.06 N ()
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telegram-47006
asked
Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...9. Initially both blocks A and B are in equilibrium. If string between A and B is cut, then acceleration of block A just after cut will be (pulley and strings are ideal) iMagcoxo 0-0.8 Kx 2my 12mg
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telegram-47001
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Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...Acidity decreases then oxidising property deacreases naaa.???????
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telegram-1913
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Jan 23, 2020
by
balaji.thirumalai
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(chatquestion)...A slightly divergent beam of charged particles accelerated by a Potential difference V propogates from a point A along the axis of a solenoid. The beam is brought into focus at a distance 1 from the point A at two successive values of magnetic induction Bị and B2. Find the specific charge q/m of the particles.
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telegram-1911
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Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...4. Contraception pills may be taken upto one week after coitus to prevent contraception.
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telegram-46988
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Jan 23, 2020
by
balaji.thirumalai
0
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(chatquestion)...Alcohol l'ess acidic than M26 and neetsal for cftmus Reason papes and give Ha with active pmedal '(Nark) DATE: Acidic audes -> R-OH H20 CH= CH NH3
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telegram-1875
asked
Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...4. Wavelength of photon released from transition of electron from 4 → 2 in He2+ is equivalent to transition of electron H+ from :- (1) 3 → 1 (2) 2→ 1 (3) 3→ 2 (4) 4 → 2
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telegram-1873
asked
Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...Exomple 11.46 A uniform circular disc of radius R oscillates in a vertical plane about a horizontal axis. Find the distance of the axis of rotation from the centre for which the period is minimum. What is the value of this period? Sol. The time period of a compound pendulum is the minimum when its length is equal to the radius of gyration about its centre of gravity, i.e., l = K. Since, the moment of inertia of a disc about an axis perpendicular to its plane and passing through its centre is equal to, MR? = K= I= MK² Thus, the disc will oscillate with the minimum time period uhen the distance of the axis of rotation from the centre is And the value of this minimum time period will be V2R 2R/N2 1.414R =2n. Tmin =27 or T 2т %3D min
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telegram-46963
asked
Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...2. FALSE Mendelian recombinants are due to crossing over. 3. Mendel Conducted Somatic Hybridization experiments on garden FALSE pea. Two alleles of a gene are located on homologous sites on TRUE homologous chromosomes.
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telegram-46955
asked
Jan 23, 2020
by
balaji.thirumalai
0
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(chatquestion)...A sound wave of wavelength 2 travels horizontally towards the right with a velocity V. It strike and reflects from a vertical plane surface, travelling at a speed v towards the left. The numberd positive crests striking in a time interval of 3 sec, on the wall is (A) 3 (V+ vyn. (C) (V+vy32. (B)3(V – v)2. (D) (V – v)/3). It is observed that it
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telegram-46950
asked
Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...Never respond to rudness When people are rude to You, They reveal who they are not, who you are Don't take it personally. Ankita Be silent
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telegram-1839
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Jan 23, 2020
by
balaji.thirumalai
0
answers
(chatquestion)..."Forget yotraas Forgive vourself And beah agairf It's never too late !" Ankita Sharma 2.
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telegram-1838
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Jan 23, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...9. A body of mass 5 kg is acted upon by two perpendicular force 8 N and 6 N, find the magnitude and direction the acceleration (a) 3 ms2, 0 = cos=' (0.8) from 8 m (b) 2 ms2, 0 = cos-1 (c) 3 ms2, 0 = cos-' (0.9) from 6 m (d) 5 (0.6) from 6 m %3D %3D s-2, 0 = cos- (0.81) from 8 m
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telegram-1822
asked
Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...the En the ircuit ehowni nesitances are the batteryis s ascumed Toleal with emb acrose the mesia tance C) 1:2 u
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telegram-1815
asked
Jan 23, 2020
by
balaji.thirumalai
0
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(chatquestion)...Incoming Outgoing Electrons Electrons Crystal plane If a strong diffraction peak is observed when electrons are incident at an angle 'i' from the normal to the crystal planes with distance' between them (see figure), de Broglie wavelength AdB of electrons can be calculated by the relationship (n is an integer) A. d sin i = nAdB %3D B. 2d cos i = NA«B C. 2d sin i = nAdB D. d cos i = nddB %3D
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telegram-46945
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Jan 23, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...18, 2,3-Dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid ? (1) (CH,),C=CH-CH,-CH3 (2) (CH,),CH-CH,-CH=CH, (3) (CH),CH-CH-CH=CH, CH, (4) (CH,),C-CH=CH, '3/3
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telegram-46944
asked
Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...8. A constant force acting on a body of mass 3 kg change its speed from 2 ms- to 3.5 ms- in 25 s. In the direction of the motion of the body. What is the magnitude and direction of the force? (a) 18 m in the direction of motion (b) 0.32 m in the direction of motion (c) 0.64 m in the direction of motion (d) 0.16 m in the direciton of motion
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telegram-1812
asked
Jan 23, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...A third harmonic standing wave (n = 3) is set up in a 3 m organ pipe that is open at the non-driven end. The amplitude of the acoustic pressure is 0.5 percent of atmospheric Problem 2: pressure. (A) Write expressions for y(x, t), ugp(x, t), Sp(x, t) and Sp(x, t), where y(x, t) displacement of the particle at position x at time t. Ugp(X, t) = position x at time t. õp(x, t) change in pressure at position x and at time t. õp(x, t) = change in density at position x and at time t. (B) Determine the values of amplitudes of the quantities in (A). (The temperature is 0°C.) (C) What is the frequency of the standing wave? У driven Open end end 13 = 2L/3 %3D velocity of the particle at
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telegram-46940
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Jan 23, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...omentors.online A pipe open at both ends produces a frequency f1. When the pipe is kept with th of Its Jength it water, it produced a note of frequency f. 12 note of 12 । ५ The ratio h is आतति 3. (a) 4 (b) (c) 2 (d) 2 13 The fundamental frequency of a closed pipe is 220 Hz. 13 If of the pipe is filled with water, the frequency of एक पाइप the first overtone of the pipe now is की (a) 220 Hz (b) 440 Hz (c) 880 Hz (d) 1760 Hz 14 The equation of stationary wave along a stretched 14 string is given by y = 5 sin- TOX cos 40 zt where x and y are 3 in centimetre and t in second. The separation between two adjacent nodes is : (b) 4 cm (a) 6 cm (d) 1.5 cm (c) 3 cm A bus is moving with a velocity of 5 m/s towards a huge wall, the driver sounds a horn of frequency 165 Hz. If the speed of sound in air is 355 m/s, the number of beats heard per second by a passenger on 15 15 the bus will be (a) (b) 5 (c) (d) 4. iome 6 Two identical sinusoidal waves each of amplitude 5 mm with a phạse difference of TE/2 are travelling in the same direction in a string. The amplitude of the resultant wave (in mm) is (a) 16 Žero 5/2
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telegram-1800
asked
Jan 22, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...blanks A, B, C and D are prane, C- Photosystem (1), D- Photosystem () hylakoid membrane, C-Photosystem (1), D-Photosystem (I) A-F1, B- Thylakoid membrane, C-Photosystem (II), D-Photosystem () (c) ) A-Fo, B- Thylakoid membrane, C-Photosystem (II), D-Photoystem (1) 72 The graph below refers to an experiment involving a species of alga. The relative concentrations of GP and RuBP present in the cells were monitored when the plants were in light and then in darkness - GP relative concentration RUBP dark light Which of the following conclusions CANNOT be drawn from these results? (a) In darkness the relative concentration of GP increases (b) During the experiment RUBP may be converted into GP let The relative concentration of RUBP decreases on removal of CO2 (d) In light a steady state exists between RuBP and GP 23-01-2020 02:57 Which one of the following is the correctly matched pair of a product and the microorganism iblo for it
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telegram-1798
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Jan 22, 2020
by
balaji.thirumalai
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(chatquestion)...The molecule shown to the left is riboflavin (vitamin B2). Answer the following questions about its structure. н но-с-н н-с-о-н н-о-с-н н-С-О-н how many carbons are sp' hybridized? a) sp hybridized? sp hybridized? Н-С-н нн-ҫ-н How many nitrogens are sp' hybridized? b) Н-С. sp hybridized? sp hybridized? c) How many oxygens are sp hybridized? sp hybridized? sp hybridized? d) How many o bonds are there in total? How many z bonds are there in total? e) f) Which of the three rings are planar?
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telegram-1791
asked
Jan 22, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...owing represents maximum number of species among global biodiversity ? Mosses and Ferns (2) Algae 105. Whic (3) Lichens aY Fungi 106. Read the following statements (A-E) and answer the question which follows them. lay In liverworts, mosses and ferns gametophytes are free living (b) Gymnosperms and some ferns are 11 heterosporous JC) Sexual reproduction in Fucus, Volvox and Allbugo is oogamous The sporophyte in liverworts is more elaborate than that in mosses (EY Both, Pinus and Marchantia are dioecious How many of the above statements are correct ? (1) Four (3) Two (2) One ,(4) Three 107. Pigment-containing membranous extensions in some cyanobacteria are : (1) Chromatophores (3) Basal bodies (2) Heterocysts (4) Pneumatophores 108. Which of the following is not correctly matched for the organism and its cell wall degrading enzyme? ) Fungi - Chitinase (2) Bacteria - Lysozyme 13) Plant cells - Cellulase (4) Algae - Methylase AIIMS 2013 109. In which organisms external fertilization occurs
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telegram-1733
asked
Jan 22, 2020
by
balaji.thirumalai
0
answers
(chatquestion)......0.2KB/s all 74 1:38 AM Doubts No Active Doubts What would you like to ask today? + ASK A DOUBT Showing: All Previous Doubts PHYSICS If the net force is equal to the zero at the time of removing the force, then why only the applied force is consented when the power is released 16 Jan, 2020 PHYSICS 37 Which of the following pair have the same number of atoms? (1) 64 g S, and 64 g S, (2) 48 g O, and 48 g O, (3) 11200 ml CH, at STP and 38 g N,O, (4) All of these
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telegram-1704
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Jan 22, 2020
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balaji.thirumalai
0
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(chatquestion)...242. Consider the reaction : R-CHO+NH, NH2→ RCH=N-NH, What sort of reaction is it? G COLLGC OLGCL OL [AIPMT (Mains) 2012)| (a) Electrophilic addition-elimination reaction (b) Free radical addition-elimination reaction (c) Electrophilic substitution-elimination reaction (d) Nucleophilic addition-elimination reaction (8)
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telegram-1637
asked
Jan 22, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...The diameter of aperture of a plano-convex lens is 6 cm and its maximum thickness is 3 mm. If the velocity of light in the material of the lens is 2x 108 m/s, its focal length is (approximately) (2) 15 cm (1) 10 cm (4) 60 cm (3) 30 cm
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telegram-1618
asked
Jan 22, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...1.2 Question 2 (a) Perform the following conversions: (i) 0.076 L to mL (i) 6.88 x 10? to s (ii) 5000 days to seconds (iv)gal/min to L/s (v) 0.510 in/ms to km/hr. (1gal = 3.37854 L) and (lin = 2.54 cm) (b) The speed of light in the vacuum is 2.998x 108ms-1. Calculate its speed in km/hr. (c) The density of air at ordinary atmospheric pressure and temperature 25°C is 1.19g/L. What is the mass of äir in kilogram in ä that measures 3.0 m x 5.0m (d) Explain the difference between (i) Precision and accuracy (e) Use appropriate prefixes to write the following measurements without exponents: (i) 6.3S x 10- L (ii) 7.2 x 10-6s (iii) 9.5 x 10-11m (iv) 12.4 x 10-8g (v) 10.1 x 10-1K (vi) 5.2 x 10-9 m3 (f) Carry out the following mathematical operations, and give each result with the correct number of significant figurés. (i) 1.05 3 x10-3+ 6.135 (i) 21 - 13.8 (g) As part of a laboratory assignment to determine the value of the gas constant (R), a student measured the pressure (P), volume (V), and temperature (T) for a sample of gas, where PV The following values were obtained: P = 2.560, T = 275.15, and V = 8.8. Calculate R to the correct. number of significant figures.
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telegram-46926
asked
Jan 22, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...ncht 1oP storing, maintaining, and accessing data. scalable alternative to many of the commercial RDBMSS available today. a No I1. 35 4 x 207 r Sa 23 ax 6.0XLO 4XL07 11.35x6.022x40?3 a= 4.94 x10-3
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telegram-46852
asked
Jan 22, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...TEr y schottky elefects lower the density of related solids? e density of lead is 11.35 g cm and the metal crystallizes wisth foe unit cell esfiomote radius of lead atom (atomic mass of lead -207 gmol, N- 6522x 1 ndard electrode potential for deniel cell is1.IV calculate the standand Gab ctal es tr hat is reverse osmosis? reaction: ormula +2(ag)+ Cus)
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telegram-46817
asked
Jan 22, 2020
by
balaji.thirumalai
2
answers
(chatquestion).... All the metal ions contains te configuration, which of the following complex will be paramagnetic :- 2g ° (e) (1) [Fe"CI(CN),(O,)]“ (2) K¿[Fe(CN),] (b) (3) [Co(NH,),]Cl, (4) [Fe"(CN),(0,)]> 1a1יו-
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telegram-46814
asked
Jan 22, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Illustration -4 If the equation 6x2 – xy - 12y2 - 8x + 29y - 14 = 0 represents a pair of lines. Then the equations of each line. (A) 4x + 3y - 7=0 (B) 5x - 3y - 2 = 0 (C) 3x + 4y – 7 = 0 (D) 2x - 3y + 2 = 0
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telegram-46812
asked
Jan 22, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...58. [Pt(NH,)(NH,OH)(NO,)(Py)]* will form how many geometrical isomers :- (2) 3 (3) 0 (1) 2 (4) 5 Isomerism exhibited by [Cr{NH.). (HO) CL:. 59.
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telegram-46810
asked
Jan 22, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...2.7n+3.5n−52.7n+3.5n−5 is divisible by 24, for all n∈Nn∈N.
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telegram-46804
asked
Jan 22, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...The total No. of possible isomers of the 53. compound [Cu"(NH,),][Pt" Cl,] are :- (2) 5 (1) 3 (3) 4 (4) 6 is exnected to show'- 134
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telegram-46798
asked
Jan 22, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...Are You looking for ASSIGNMENT HELP Plagiarism Free 4.9 Rating 100+ Subjects 24/7 Help 3000+ Experts (whatsapp OR Telegram) + 92 333 696 4232 SUBJECT WE DEAL IN: Business, Commerce, Marketing, Project Management Accounting, Law, Finances, Education, Training and Assessment Nursing, Aged Care, Biology, Science, Maths Real Estate, Commercial Cookery, Hospitality, Fitness
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telegram-46793
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Jan 22, 2020
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balaji.thirumalai
0
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(chatquestion)...1, 61 2074 Supp. Q.No. 9b Obtain the value of g from the motion of moon assuming that its period of rotation round the earth is Sh 27 days 8 hours and the radius of its orbit is 60.1 times the [4] radius of the earth. 1. Ans: 9.76 m/sec?
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telegram-46785
asked
Jan 22, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...Which of the following is the most obvious yet 91. complex feature of living organisms :- (1) Metabolism (2) Self consciousnes (3) Celluar organisation (4) Consciousness Claspers and ampulla of lorenzini is characteristic in :- 92.
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telegram-1530
asked
Jan 22, 2020
by
balaji.thirumalai
1
answer
(chatquestion)...Which of following isomers of [M(NH,),Cl, would react with silver oxalate (Ag,C,0,) :- 40. Cl Cl H,N H,N M. (2) CI (1) H,N NCI H,N (4) None (3) Both
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telegram-46780
asked
Jan 22, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...129. Read following features :- (i) Amphibian of plant kingdom (ii) Show haplontic life cycle x 129, निम्नलि (1) पाद (ii) 3r (iii) Gametophyte is green and independent structure (iv)Sporophyte is consist of foot, seta and capsule of the above are true for Bryophyta (in) (iv) उपरोक्त (1) & 130. Choose correct one between column I, II &III:- 130. L I B ds How many (1) Two (2) Three (3) One (4) Four Col Column I Column III Column II
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telegram-1478
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Jan 22, 2020
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balaji.thirumalai
0
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(chatquestion)...27. 12V T H 1µF 8Ω Find V.-V in the given diagram :- (2) 4 V (1) 1 V (4) zero (3) 2 V EXERCISE-II (Previous Years Questions) 7. 5. 4.
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telegram-1468
asked
Jan 22, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...0.19K/s L 7:13 PM 67% ll 4G VOLTE DPS 139 - Biological Classification based on? आर एच विटेकर द्वारा सुझाए गए वर्गीकरण की पांच राज्य प्रणाली इस पर आधारित नहीं है? Presence or absence of a well A. defined nucleus. B. Mode of reproduction. C. Mode of nutrition. D. Complexity of body organisation. INCORRECT. The correct answer is b Mode of reproduction is not a criteria in five kingdom system of classification ( Previous Next >
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telegram-1441
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Jan 22, 2020
by
balaji.thirumalai
0
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(chatquestion)...(B) -LH LA) -OCH, (CJ TAJ and (B) both Which group is increases strongness of base in substitute aniline? (B) -SO,H 13. (A) -NO, (C) -COOH (D) All of these [B] Answer the following Ouestions. [Each carries 2 marks) [14]
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telegram-46768
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Jan 22, 2020
by
balaji.thirumalai
0
answers
(chatquestion)...9. The general solution of the equation sin?x cos?x + sinx COSX - I 1+ 7 (A) nn + tan1 (B) nn + tan 1 1+ 7 (C) nn + tan1 (D) None of these 7-1)
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telegram-46759
asked
Jan 22, 2020
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balaji.thirumalai
0
answers
(chatquestion)...11. Which compound has low boiling point ? (A) CH,CH,CH,NH, 12. Which element increases strongness of base? (B) CH3 - NH – CH,CH, (C) (CH3)3= N (D) CH,CH,NH,
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telegram-46753
asked
Jan 22, 2020
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balaji.thirumalai
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(chatquestion)...R, ww 7. R. www R, 3V If R, = 62, R, = 42, R, = 20 then %3D %3D %3D 2. find current in R3. 3 (2) -A (4) A (3) A (1) 4.5 A 43
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telegram-46744
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Jan 22, 2020
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balaji.thirumalai
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(chatquestion)...sınr %3D 2/2 2. 10 - 0.7 Sol. 4.65 k2 2x10-3 3. D (2lds sin? 0 F. Sol sine
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telegram-1407
asked
Jan 22, 2020
by
balaji.thirumalai
0
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