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Questions asked by balaji.thirumalai
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4474
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(chatquestion)...BIOArena BioArena's Bio-Revision Capsule A must have book for NEET Biology revision * CHAPTER WISE CRISP NOTES COVERING ENTIRE NCERT *CHAPTER-WISE MORE THAN 5000+ QUESTIONS *ALL QUESTIONS HAVING PROPER SOLUTIONS GUARANTEED 80+ QUESTIONS FROM THIS BOOK IN NEET 8168247877 /bioarena.net
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telegram-705
asked
Mar 8, 2020
0
answers
(chatquestion)...10 (3) 3d (4) 4 amu -md-mie. ce 16 A disc and a ring starts roll down without slipping on an inclined plane from same height. The ratio of time taken by them to reach the bottom of the inclined plane will be 5: acmt 23mn- m (1) 2:3 (2Y2: 3 25 d/3 (3) 2: 3 N= (4) V2:3 Acm gh Work t. /2
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telegram-59206
asked
Mar 8, 2020
0
answers
(chatquestion)...Нарру Holi
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telegram-59204
asked
Mar 8, 2020
0
answers
(chatquestion)...* 37. A uniform wire of length L and radius r is twisted by an angle a. If modulus of rigidity of the wire is n, then the elastic potential energy stored in wire, is Tnr*a (1) 2L2 Tanr*a² 4L Tnr a (3) 4L2 ,2 Tenr*a? (4) 2L
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telegram-59202
asked
Mar 8, 2020
0
answers
(chatquestion)...(@) 2, 3, 4 101. If the pressure in a reaction vessel for the following reaction is increased by decreasing the volume, what will happen to the concentrations of CO and CO,? H,0(g) + CO(g)= H2(g) + CO2(g) +Heat (a) both the [CO] and [CO2] will decrease (b) neither the [CO] nor the [CO2] will change (c) the [CO] will decrease and the [CO,] will increase (d) both the [C0] and [CO,] will increase 102. Considor ohe
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telegram-59193
asked
Mar 8, 2020
1
answer
(chatquestion)...periodic. (ii) A simple harmonic motion is necessarily oscillatory. (iii) An oscillatory motion is necessarily periodic. (iv) A periodic motion is necessarily oscillatory. i, ii (2) i, iii ii, iii (4) i, iv A source of power 1.2 MW emits photon which 14. 14, incident on a surface 2.5 m away out of which 50% is reflected back, what is the radiation pressure on the surface ? (1) 3.9 x 105 Pa (2) 7.8 x 10 Pa 1.7 × 10 Pa (4) 15.6 x 10 Pa A vessel with water is placed on a weighing pan |15 * and it reads 600 g. Now a ball of 40 g and 15. density 0.80 g/cc is sunk into the water with a pin as shown in figure keeping it sunk. The weighing pan will show a reading :- 401200 Y600 g (2) 550 g 40 x2 (3) 650 g 632 g MAJOR LEADER TEST SERIES -JOINT PACKAGE COURSE NEET (UG)-2020 /08032020 Space for Rough Work / Pity - = 3-2x-20 6....(15)
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telegram-59190
asked
Mar 8, 2020
0
answers
(chatquestion)...ALLEN 33. A plane parallel oil film (µ = 1.4) floating on 33. water is illuminated by white light at normal incidence. If the thickness of film is 300 nm the most reflected wavelength will be :- (1) 4400Å (2) 6400Å (3) 5600Å (4) 7200Å
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telegram-59189
asked
Mar 8, 2020
1
answer
(chatquestion)...RELATIVES:- DOCTOR &-a a ae NEET ASPIRANT:- VISIONat CLEAR REVISIONĦ दिक्कत है...
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telegram-690
asked
Mar 8, 2020
0
answers
(chatquestion)...H+ |100%4:06 PM 100% Q. For a wavelength of light A and scattering object of size a, all wavelengths are scattered nearly equally, if Delhi UMET Delhi UMET 2011 Wave Optics Report O A a = X B a >>A C A<< A D a>A
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telegram-59187
asked
Mar 8, 2020
0
answers
(chatquestion)...39. Match column-I (definition) with colum (terms) and select the correct option from codes given below. Column-I Column- A. A single trait controlled by 1. Pleiotropy three or more than three alleles B. A single trait controlled by 2. Multiple is three or more than three genes. alleles C. Asingle gene exhibits multiple 3. PolygenicE phenotypic expression inheritance A-2 B-3 C-2 b. A-3 B-2 C-1 B-2 c. A-1 dA-2 B-1 C-3...(Why is the ans a?.??)
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telegram-59177
asked
Mar 8, 2020
1
answer
(chatquestion)...2"-1 tan- 1+22r-1 K. r=1...(YE KR DONA KOI)
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telegram-59174
asked
Mar 8, 2020
1
answer
(chatquestion)...Date 21) り It sin'x dx sine t Cosx 4.) Sinx dae 4- C0sx Losx dx 6.) dre 12)
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telegram-59170
asked
Mar 8, 2020
1
answer
(chatquestion)...(1) R,/R, Find direction of induced current in secondary circuit for the following changes in primary circuit :- (4) R,/R, 8. anth - (a) Key is just closed (b) Some time after the closing of key (c) Key is just opened (i). (ii) (iii) L. IN 113
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telegram-59162
asked
Mar 8, 2020
1
answer
(chatquestion)...Evaluate : dx o1+ sin2 x
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telegram-59146
asked
Mar 7, 2020
1
answer
(chatquestion)...68 clay6.com/qa/7823/find-the-area-of 15 V Email Chat with tutor C° Ask Questions, Get Answers Questions >> TN XII Math >> Vector Algebra Step 1 A(3, –1, 2), B(1, –1, –3), C(4, –3, 1) Here vector area of triangle = H(АВ х АС) AB = (1 – 3) i + (-1+1) +(-3 – 2) k -2 i - 5 k AC = (4 – 3) +(-3 + 1) + (1 – 2) k i - 2 i - k Step 2 AB x AC = -2 -5 1 -2 -1 = (0 – 10) i 7-(2 + 5) + (4 – 0) k = -10 i +7 i: 4 k Vector area A ABC = }(-10 i +7j +4 k ) Area =V100 + 49 + 16 V165 sq. units A* Home Ask Homework Questions Practice
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telegram-59117
asked
Mar 7, 2020
0
answers
(chatquestion)...Q.14 In two vessels each containing 500ml water, 0.5m mol of aniline (K,= 10-9) and 25mmol of HCl are added separately. Two hydrogen electrodes are constructed using these solutions. Calculate the emf of cell made by connecting them appropriately.
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telegram-59114
asked
Mar 7, 2020
1
answer
(chatquestion)...Assertion (A) : Benzoic acid does not undergo Friedal-Crafts reaction. : The carboxyl group is activating and undergo electrophilic substitution reaction. Reason (R) 20 x 1 = 20
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telegram-59092
asked
Mar 7, 2020
1
answer
(chatquestion)...46 MOTION IN A PLANE [CHAP. 4 Problem 4.4 An archer standing on a cliff 48 m above the level field below shoots an arrow at an angle of 30° above horizontal wilh a speed of 80 m/s. How far from the base of the cliff will the arrow land?
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telegram-59089
asked
Mar 7, 2020
1
answer
(chatquestion)...COOH (CH3CO)20 CH3COOH
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telegram-59086
asked
Mar 7, 2020
1
answer
(chatquestion)...19. Assertion (A): Low spin tetrahedral complexes are rarely observed. Reason (R) : The orbital splitting energies are not sufficiently large forcing pairing. 20. Assertion (A) : Boiling points of alkyl halides decrease in the order R-I > R-Br > R-Cl > R-F. Reason (R) : Van der Waals forces decrease with increase in the size of halogen atom. SECTIONB 21. Predict the state of the solute in the following situations: 1x2=2 (a) Experimentally determined molar mass is more than the true value. (b) i value is 0-4. it O.4 22. For an electrochemical cell F2 (g) + 21 (aq) 2F (aq) + I2 (s),...(q num 21)
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telegram-59075
asked
Mar 7, 2020
1
answer
(chatquestion)...36. A stretched wire of length I, free at one end can sustain stationary waves of wavelength 2 then the value of A which is not possible is (symbols have their usual meaning) 41 (2) 1 = 4/ (1) 2 = 3 %3D 41 (3) 1 = 6. 41 (4) 1=
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telegram-59070
asked
Mar 7, 2020
1
answer
(chatquestion)...6. Maximum amount of oxygen is lost from the blood in the e a. Capillaries surrounding the tissue cells b. Arteries of the body c. Capillaries surrounding the alveoli d. Left auricle of the heart
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telegram-59068
asked
Mar 7, 2020
1
answer
(chatquestion)...Two masses A & B each of 5 kg are suspended by a light inextensible string passing over a smooth massless pulley such that mass A rest on smooth table & Bis held at the position shown. Mass B is now gently lifted up to the pulley and allowed to fall from rest. Determine up to what height will A rise for the ensuing motion. 1m 2m B. 1.25
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telegram-59066
asked
Mar 7, 2020
1
answer
(chatquestion)...Centre of Mass ALLEN CAREERINS RCISE a Class Asimple penduhmis suspended from a peg on a vertical wall. The pendulum spuled away from the wall to ahorizontal position (see fig.) and released. What is the The ball hits the well, the coefficient of restitution being V5 minimum number of collisions after which the amplitude of oscillations becomes loss than 60 degrees? Two messes A &B each of 5 kg are suspended by a light inextensible string passing over a smooth massiass pulley such that mass A rest on smooth table &Bisheid at the position showwn. Mass Bis now gently lifted up to the pulley andalowed to fall from rest. Determine up to what height will A rise for the Easuing motion. 1m 2m B. 1.25 0.5 kg are connected with each other as shown in Fig. and rest over a 10. Three idenical bals each cf mass m = Smoo horizontal table. At momentt = 0, ball Bis imparted a horizontal velocity v=9ms. Calculate velocity of Aust before it collides with ball C. 10...(9)
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telegram-59064
asked
Mar 7, 2020
0
answers
(chatquestion)...If the equation 3x2, scalene triangle, has distinct and real roots, then which of the following is a possible value of k? 5p2 -x+2p°k -0, where p, q and r are the length of three sides of a p+q+r 10-0.55 20-0.45 300.6 400.75
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telegram-59058
asked
Mar 6, 2020
0
answers
(chatquestion)...(CBSE 2019] Monochios deriorstine 4-chlorobenzene sulfonic acid CH3 nore ion SHORT ANSWER TYPE QUESTIONS structures of the following a1. Write compounds: Dichloro derivam [NCERT INTEXT] pyl ets oyl ) 2-Chloro-3-methylpentane ) 1-Chloro-4-ethylcyclohexane (ii) 4-tert-butyl-3-iodoheptane (iv) 1-4-Dibromobut-2-ene (v) 1-Bromo-4-sec-butyl-2-methylbenzene re CH-CH-CH3
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telegram-59052
asked
Mar 6, 2020
1
answer
(chatquestion)...Which of the following will not show geometrical isomerism? CI CI Propene 2-Butene CI (II) (11I) (IV) (V) (VI) (1) of the following compounds.
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telegram-59044
asked
Mar 6, 2020
1
answer
(chatquestion)...CH3CH,CHCH3 (ii) N(CH3), + он -4>
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telegram-5593
asked
Mar 6, 2020
1
answer
(chatquestion)...2-38 A ball is projected horizontally from the edge of a platform at 12.0 m.s. If the platform is 8.0 m above the floor, what are the magnitude and direction of the ball's velocity as it hits the floor? [Answer= 10 6...(Help me)
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telegram-59040
asked
Mar 6, 2020
1
answer
(chatquestion)...(iv) Transgehle ICU vaccines. f (iii) only (c) (ii) only (c) (iii) and (iv) only gic cow (d) (ii) and (ii) only (Kerala PMT) milk for matim )animals 1ike 1 super power (b) () and (iit) only 80. Desired genes have been introduced into transgenic animals to obtain large scale production of useful biological products encoded by these genes. This approach is generally referred to as (a) Gene therapy (b) Hybridoma technology (c) Downstream processing A Molecular farming 12.4 2018 86. In India, the on safety of intro for public use (a) Indian (b) Counci (CSIR (c) Resean (RCG ( Genet ?? (Karmataka CET) 2015 81. One of the advantages of developing transgenic mice is that it is very useful oto study vaccine safety...(Iska answer hybridoma technology kyu nhi hai
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telegram-59030
asked
Mar 6, 2020
1
answer
(chatquestion)...(NEET) Which of the following is true for Golden rice? It has yellow grains, because of a gene introduced ao It is vitamin A enriched, with a gene from (c) It is pest resistant, with a gene from Bacillus (d) It is drought tolerant, developed using (a) from a primitive variety of rice. . daffodil. 8. thuringiensis. Agrobacterium vector. (NEET...(Ye question ncert ke bahar Ka hai kya? Daffodil Kaha Diya hai ncert mei
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telegram-59023
asked
Mar 6, 2020
1
answer
(chatquestion)...55. Using the Gibbs energy change, AG° = +63.3 kJ, for the following reaction, %3D Ag,CO3(s) = 2Ag*(aq)+CO3 (aq) the Kn of Ag,CO,(s) in water at 25°C is ds, (R = 8.314 J K-1 mol-1) %3D (1) 3.2 x 10-26 (2) 8.0 x 10-12 (3) 2.9 x 10-3 (4) 7.9 x 10-2
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telegram-59014
asked
Mar 6, 2020
1
answer
(chatquestion)...Bo is the magnetic field at point P for a given straight wire as shown in figure. If this wire is bent into a circular loop, then magnetic field at the centre of loop is 6. B de E Jeo I » Jes I 2 2x Sinp ? Juo I 234 2. し、 L. (1) 2rB, TB, (2) V2 T°B, er2B, (4)...(Anyone ? I’m getting pi square B./ root 2)
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telegram-59010
asked
Mar 6, 2020
1
answer
(chatquestion)...hese PERMUTATIONS 231. The number of permutation of n different things 24 taking r at a time when 3 particular things are to be included is (a) P (b) "P, (c) "P,-3 (d) r! P, 232. The number of five- digit telephone numbers having at least one of their digits repeated is (a) 90000 (b) 100000 (c)30240 (d)69760 23 The number of words that can be formed out of the letters of the word "ARTCLE" so that vowels occupy even place is (a) 574 234. The number of words from the letters of the word BHARAT' in which B and H will never come together, is (b) 36 (c) 754 (d) 144 (a) 360 (b) 240 (c) 120 (d) none of these 20. The number of ways in which 6 men can be arranged in a row so that three particular men are consecutive, is 1) (a) 4! x 3! (b) 4! (c) 3! × 3! (d) none of these 2 236. A 5-digit number divisible by 3 is to be formed using the digits 0, 1,2,3,4 and 5 without repetition The total number of ways in which this can be done is (a)216 237. (d) 3125 itive integer is (b) 600 (c) 240
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telegram-59007
asked
Mar 6, 2020
1
answer
(chatquestion)...An examination of the E values for the redox couple M*/M²* (Ta 8.2) shows that Mn* and Co* ions are the strongest oxidising age 3+ in aqueous solutions. The ions Ti*, Vª and Cr* are strong redu agents and will liberate hydrogen from a dilute acid, e.g.,...(class 12 ncert part 1 pg 220. Co3+ strongest oxidising agent ki tarah Kaise kaam krta hai?? And why?? Plz...)
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telegram-5587
asked
Mar 5, 2020
1
answer
(chatquestion)...2-45, A ball is projected towards a wall at a speed of 30 m.s and at an angle 40° above the horizontal. How far above the height at which the ball is released does the ball hit "the wall? The wall is 28 m away from the thrower. [Answer = %3D...(Help me)
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telegram-59001
asked
Mar 5, 2020
1
answer
(chatquestion)...CAz ce Mz Platon) Pd (a) on...(Can anyone explain this)
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telegram-5580
asked
Mar 5, 2020
1
answer
(chatquestion)...Which of the following solution has maximum vapour pressure :- (1) 1 N KNO, . (3) 1 N/Al, (SO,),. (2) 1 N Ba(NO,), (4) 1 N Ti(NO,),
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telegram-58999
asked
Mar 5, 2020
1
answer
(chatquestion)...Example 10.32 In a double slit pattern (A = 6000 Å), the first order and tenth order maxima fall at 12.50 mm and 14.75 mm from a particular reference point. If h is changed to 5500 Å, then find the position of zero order and tenth order fringes, other arrangements remaining the same. %3D dex
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telegram-58996
asked
Mar 5, 2020
1
answer
(chatquestion)...29CH, CH plt-(H, 1). () CHg CH....(Compare stability of free radicals)
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telegram-58994
asked
Mar 5, 2020
1
answer
(chatquestion)...46. Which of the following is correct decreasing rate of hydrolysis of these halides- CH3-NH-CH-Br CH3-O-CH-Br CH3 CH3 (I) (II) о СН, -CH2-Br CH3-C-Ç-Br CH3 (III) (IV) (a) I> II > III > IV (b) IV > III > II > I (c) I> II > IV > III (d) III > IV > II > I
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telegram-58991
asked
Mar 5, 2020
0
answers
(chatquestion)...46. Which of the following is correct decreasing rate of hydrolysis of these halides- CH3-NH-CH-Br CH3-O-CH-Br CH3 CH3 (I) (II) о СН, -CH2-Br CH3-C-Ç-Br CH3 (III) (IV) (a) I> II > III > IV (b) IV > III > II > I (c) I> II > IV > III (d) III > IV > II > I
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telegram-5561
asked
Mar 5, 2020
1
answer
(chatquestion)...(b) 2-Hydroxy (e) Hexanedtal Identify the functional groups In the following cof PAmne 12.8 eth D.B CHO Anisolo produced as free radical, carbocation and carbanton. (c) Each as homolysts or heterolysis. Identify Teactive intermediate. fa) (b) Ue curved-arrows to shaw the sletron (a) CH,O - OCH, CHO OCH, Frered (b) O + OH → 0 Amino ASTRY (XI) VOL 2.9 Which of CANIC CHEMISTRY-SOME BASIC PRINCIPLES AND TECHNIQUES 4) 0 1049 van4n oa monobasic Aid wooim 14x1x2x10 05 560 JASSMate N NaO4 Molai mass af the Aud a he above equation, we have, %N = by 10ml tes chloride in Carles eslmatin Pate 20 y is it necessar testing sulphu testing sulphu not interfere/ 6) 9.59 o an oc was Resi'dual Aud R e ppt. of lead an 0.C organic cor ulate the ected to c 6.0 now that ituting t Vollume
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telegram-58989
asked
Mar 5, 2020
1
answer
(chatquestion)...If electric field in the space is given by E = 4xî – (y² + 1)f and electric flux through ABCD is 4, and electric flux through BCEF is 2, then find-{1–2} aft Ey -z D(0,0,-2) C(3,0,-2) ÞEx A(0,2,-2 B(32,-2) (0,0,0) G(0,2,0) E(3,0,0) F3,2,6) x=3 Anss 98...(Snd soln drctly)
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telegram-656
asked
Mar 5, 2020
1
answer
(chatquestion)...(i+j An EM wave is travelling in V2/direction. Axis of polarization of EM wave is found to be k. Îhèn equation of magnetic field will be î+î 1. cos wt + k wt – k V2 V2 V2 3. cos wt + k X k cos wt – k V2...(Drctly give soln)
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telegram-654
asked
Mar 5, 2020
1
answer
(chatquestion)...If a point source is placed at a depth h in a liquid of refractive index 4/3. Find percentage of energy of light that escapes from liquid. (assuming 100% transmission of emerging light) 1. 15 % 2. 17 % 3. 21 % 4. 34 %...(Snd soln drctly)
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telegram-652
asked
Mar 5, 2020
0
answers
(chatquestion)...26. If the n=8 in plant cell then what is possible in pachytene of meiosis? a. 8 Tetrad; 2 Pair centriole; 16 pair sister chromatid b. 16 Tetrad; 1 Pair centriole; 8 pair sister chromatid c. 8 Tetrad; 2 Pair centriole; 6 sister chromatid d. 16 Tetrad; 2 Pair centriole; 16 sister chromatid
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telegram-58983
asked
Mar 5, 2020
1
answer
(chatquestion)...Given an element having following ionisation enthalpies IE1 496 IE2 =4562 kJ and mol kJ one mole hydroxide of this element is treated separated with HCl and mol H,SO, respectively. Moles of HCl and H,SO, reaction respectively is 1, 0.5 2. 0.5, 1 3. 2, 0.5 4. 0.5, 2...(Explain plz)
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telegram-650
asked
Mar 5, 2020
0
answers
(chatquestion)...Law Oi punty Of galfietes 04. In maize, coloured endosperm (C) is dominant over colourless (c); and full endosperm (R) is dominant over shrunken (r). When a dihybrid of F, generation was test crossed, it produced four phenotypes in the following percentage: Coloured full - 48% Coloured shrunken - 5% Colourless full - 7% From this data, what will be the distance between two non-allelic genes? (a) 48 units (c) 7 units 1. Colourless shrunken - 40% (b) 5 units (d) 12 units for Mendel 3:58 il Ode YO 85 + Your Doubt...(Pls
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telegram-5559
asked
Mar 5, 2020
1
answer
(chatquestion)...Show that
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telegram-58979
asked
Mar 5, 2020
1
answer
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