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Questions asked by balaji.thirumalai
Questions
4474
questions
1
answer selected
(chatquestion)...(4) 53°. 9. A uniform chain of mass M and length L kept on 3. smooth surface. The work done in bringing the chain completely on the inclined plane is こり 30% (1) Mg (2) Mg (3) Mg (4) Mg 16 but prevented from expanding,
other
telegram-59900
asked
Mar 18, 2020
1
answer
(chatquestion)...uni-varient Which of the following functions changes its magnitude most rapidly at x 0? (A) e** (B) e e * (C) e (D) e2
other
telegram-59892
asked
Mar 18, 2020
1
answer
(chatquestion)...For a particle moving on a straight line, the acceleration-position (a - x) variation is as shown. If the velocity of the particle at x = 5 m is v21 m/s, then its velocity at x = 15 m will be * v2-2xル a (m/s)4 4- T0 v2 x (m) こん 1) 9 m/s 5 10 15 20 (2) 12 m/s 3) 10 m/s (4) 7 m/s 2/2
other
telegram-59890
asked
Mar 18, 2020
1
answer
(chatquestion)...lie and find them. 5. Solve the following equations: (i)z4 – 3z2 + 2 = 0. 12 (ii)y(y + 1) + = 8, y(y + 1) 5. Solve completely the following (i)V/x² – 3x + 6 – Vx² – 3x + 3 = 1, (??) 5x + 2 3x + 2 = 3, + 2 %D...(Please someone should help me with 5 ii thanks)
other
telegram-59888
asked
Mar 18, 2020
1
answer
(chatquestion)...(L) 1 . Required area = | I | = Ans. : C %3D %3D Ge km 5. Area between the region y = | x – | | and lines y = 3 -|x | is %3D (AIEEE 2003, Orrissa (JEE) 2003) (A) 4 (B) 2 (C) 3 (D) 4 . Nov Ans. : D Now are Given region is rectangle (0-2)? - V8 –2/2
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telegram-59884
asked
Mar 18, 2020
1
answer
(chatquestion)...2. The major product obtained in the following transformation is OH CHO H2O2, NAOH CH,Cl, rt Он Он содн Он (A) (B) Q-OH он (C) сон (D) сно ОН
other
telegram-59874
asked
Mar 18, 2020
1
answer
(chatquestion)...(4) is an inertial frame because the earth rotating about its own axis (55 What should be the acceleration of traingular bloa so that mass m just fly from it's surface A body is at equilib three forces F F, =i+j-k. Ca force with the neg →smooth (1) 8=cos 3 cled as data is insufficient (1) gtanß(right) (3) =cos (2) gtanß(left) (3) gootp(right) R 48MP A QUAD CAMERA Shot ola Se (22) (4) gcotß(left)
other
telegram-59868
asked
Mar 18, 2020
1
answer
(chatquestion)...ne (1) mg sine (2) mg cos0 (3) mg tan0 In the arrangement shown in the figure, friction is absent everywhere. The string and pulley are light. The system is released from rest. If acceleration of A is 'a' then acceleration of B is g cosece (4) zero (1) g(sin0+ uc (2) g(sine-uc se the earth A (3) g(ucose- (1) a (2) 2a (4) g(usinθ+c n's laws are 64. A particle of m radius 2m with time after whi- (3) (4) P 48MP AI QUAD CAMERA arth rotatE9
other
telegram-59847
asked
Mar 17, 2020
1
answer
(chatquestion)...R 48MP AI QUAD CAMERA VB VB E. CB 30. E. CB --Acceptor VB level VB For the given transistor, the current gain is B 200. (4) 360 kn II=2.5 mA The potential difference across base collector Junction, Vca is - (2) 13 V (1) 1 V (4) 2 V (217) (3) 4 V Un oupling reaction and lodobenzene nethane and Phenol MgBr Benzylalcohol alc. KOH CH HBr Ollowings that has highest boiling R202 Final product will be acet (2) Ethanol (1) (4) Methanal но (3)
other
telegram-59845
asked
Mar 17, 2020
1
answer
(chatquestion)...5. uniform rod of density 'p' and young's modulus 'Y' is suspended vertically from upper end as shown. The radii at the two A non - ends are 'a' and 2a' and length is 'I'. The net elongation produced in the length of the rod is Spgl 3pgl (B) (A) 6Y 2Y 4pgl (C) 6pgl? (D) 2a 3Y 5Y
other
telegram-59841
asked
Mar 17, 2020
1
answer
(chatquestion)...If the object is shifted by a distance 'd' towards plane mirror, the image will shifted by a) 2d towards mirror b) 2d away from mirror c) d towards mirror d) d away from mi In the following cases we cannot cot vi
other
telegram-59837
asked
Mar 17, 2020
1
answer
(chatquestion)...How Quick can you solve this? 16 12 II || || 26 16 ANSWER THIS HERE! ||
other
telegram-59835
asked
Mar 17, 2020
0
answers
(chatquestion)...Unstration 4.19 two SHMS are represented by y, = 10 sin (4tt +t/2) and y2 = 5[sin 2nt + /8 cos 2nt], compare their amplitudes.
other
telegram-59830
asked
Mar 17, 2020
1
answer
(chatquestion)...KAメーレーメ σλ -sin 0 51 σλί (4) 2E0 In the shown circuit, when the voltage between 3. 3. A and B is 16 V the voltage between C and D is 8 V. When the voltage between C and D is 15 V, what is the voltage (in V) between A and B ? 8Ω >91上 oD B (1) 7.5 (2) 5 (4) 4 (3) 3 MAJOR LEADER TEST SERIES-JOINT PACKAGE COURSE Work /T
other
telegram-59828
asked
Mar 17, 2020
1
answer
(chatquestion)...The statement (~p p) = (~p= q) is a Tautology Contradiction None of these
other
telegram-59825
asked
Mar 17, 2020
1
answer
(chatquestion)...Br Br (4) (1) and (2) (3) 66. Give the major product of the following reaction Br он(аq.) 1 equivalent Br он give the fastest QH (1) Br (2) Br H. CHCH, (3) Br (4) Br Br CH,CH,I 48MP AI QUAD CAMERA Shot on realme 5s (139)
other
telegram-59823
asked
Mar 17, 2020
1
answer
(chatquestion)...(4) (0) (e) (9) ML’T²,L’T²,M'L²T*A? (c) ML'T,L'T-2,ML’T*A? ML'T,L'T-2, M-'L?T*A? (p) 09. If the time period t of oscillation of a drop of liquid of density d, radius r, vibrating under surface tension s is given by the formula Vr2bs°da/2. It is observed that the time period is directly proportional to The values of b should therefore be : 3 (b) 3 3. 2 2. (p) 3.
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telegram-59820
asked
Mar 17, 2020
0
answers
(chatquestion)...Zero-Order Reactions ΔΙΑ A - product rate rate = k [A]° = k Δt ΔΙΑ] At rate = Mls [A]° [A] is the concentration of A at any time t [A] = [A]o - kt [A], is the concentration of A at time t = 0 t, = t when [A] = [A]/2 -[A], [A]o ts 2k - slope = -k %3D 53 [A],
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telegram-59816
asked
Mar 17, 2020
0
answers
(chatquestion)...for zvro order riac, gpaph b/w -dlA] and t dt da) dt It at () At
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telegram-59811
asked
Mar 17, 2020
0
answers
(chatquestion)...75. A 4 uF capacitor is charged to 400 V and then its plates are joined through a resistance of 1 k2. The heat produced in the resistance is [CBSE AIPMT 1989]| (a) 0.16 J (c) 0.64 J (b) 1.28 J (d) 0.32 J
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telegram-59799
asked
Mar 17, 2020
0
answers
(chatquestion)...A group of friends went on a holiday to a hill station. It rained for 13 days. But when it rained in the morning, the afternoon was lovely. And when it rained in the afternoon, the Day was preceded by clear morning. Altogether there were 11 very nice mornings and 12 very nice afternoons. How many days did their holiday last? (a) 16 (b) 17 (c) 18 (d) NOT
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telegram-59795
asked
Mar 17, 2020
1
answer
(chatquestion)...NEET & AIIMS 50 Motion in a Straight Line 17. The displacement-time graph of two moving objects A and B are shown in the figure given below. Which the following is incorrect? (1) B is moving with constant velocity (2) A is moving with increasing speed (3) B is moving with non-zero constant acceleration (4) Acceleration of A may be çonstant
other
telegram-59793
asked
Mar 17, 2020
1
answer
(chatquestion)...NEET MOST WANTED Based on NEET Past Years Analysis 80% Questions Come from 20% Topics Topics NEET Questions Result Effort Rapid Revision for NEET 80% Result from 20% Effort Complete Course in 45 Days 80% Score from 20% Time CHEMISTRY Anurag Pareek Altis Vortex NEET...(all chapter of pcb mostwanted is uploaded on channel see top of the image)
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telegram-59791
asked
Mar 16, 2020
0
answers
(chatquestion)...(2) 1:2 (3) 1:3 (1) 1: (4) 2:3 64. (3) 1: M-M 64. (NH,), serves as :- Monodentate ligand, Non-chelating ligand (NH)- Dant (2) (2) Bridging ligand, negative ligand bea (4) Bidendate ligand, Bridging ligandy Bidentate ligand, chelating ligande 44 (4) (3) MAJOR LEADER TEST SERIES - JOINT PACKAGE COURSE
other
telegram-59788
asked
Mar 16, 2020
0
answers
(chatquestion)...9. A non-uniform magnetic field B = Bo 1+2 ks %3D present in region of space in between y = 0 and bs y = d. The lines are shown in the diagram. A particle of mass 'm' and positive charge q' is moving. Given an initial velocity ü = voi. Find the y component of velocity of the particle when leaves the field. %3D /Pыку) Vo 3qB,d Vo (1) 3qB,d Vo m(2) lo s 2m qB,d noby Vo+ 2m (3) vở 13 ЗаВ,а) 2m (4) v3 -(vo - a uticle of mass 1 x 10-26 kg and charge lling with a vologitu
other
telegram-59777
asked
Mar 16, 2020
0
answers
(chatquestion)...8. A boy has a total of 14 in denominations of 25 paise and 20 paise coins. If the numbers of coins of the two denominations were swapped, the total value of coins would be 71 less. Find the total number of coins....(Answer to this question please...)
other
telegram-59772
asked
Mar 16, 2020
1
answer
(chatquestion)...907o of the cars are maintaining pollution norms. A car is chosen at random and is found to be fit on pollution norms. What is the probability that it is manufactured by plant X? t nas two plants of car manufacturing, Plant X manufactures 60% car and plant Y manufactures 40%. At plant X. 70% of the cars are maintaining pollution norms and in plant 1, SECTION-D Duestion numbers 33 to 36 carry 6 marks each. 33. Let f:X→Y and g: Y Z be two invertible functions. Then show that gof is also invertible with (gof) = f og". 34. %3D A jet of enemy country is flying along the curve y = x + 2. A soldier, placed at (3, 2), wants to shoot down the jet of enemy when it is nearest to him. Find the nearest distance. 35. Find the area of the region bounded by the parabola y =x and y= OR Using integration, find the area of region bounded by the triangle whose verfices are (1, 3), and (5,-2). f the line passing through (1, 2, 3) and parallel to the planes x-y+ 2z
other
telegram-59769
asked
Mar 16, 2020
0
answers
(chatquestion)...12. The presence or absence of hydroxy group on which carbon atom of sugar differentiates RNA and DNA. (1) 1st The change in the optical rotation of freshly prepared solution of glucose is known as: [AIEEE-2011, 4/120] (2) 2nd (3) 3rd (4) 4th 13. [AIEEE-2011, 4/120] mutarotation (4) tautomerism
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telegram-59764
asked
Mar 16, 2020
0
answers
(chatquestion)...replace H, with D and H, with H CH3 -H, 1. H- Br replace H, with D and H, with H CH3 Relation between (X) and (Y) is : (a) enantiomers ()E and Z isomer (b) diastereomers (d) constitutional isomer
other
telegram-59762
asked
Mar 16, 2020
0
answers
(chatquestion)...(3) 0.1 A, 0.2 A iy (3) 0.1 (4) 0.2 A, 0.4 A R.(30) 37. A current I flows in an infinitely long wire with (4) 0.2 37. त्रिज्या R cross-section in the form of a semicircular ring अनन्त ल of radius R. The magnitude of the magnetic चुम्बकी- induction along its axis is :- Hol Ho. (2) 2п'R Ho. 2TR (4) 4TR (1) TC T R I°rt 38. A sinusoidal voltage V sin ot is applied across 38. प्रतिरोध a series combination of resistance Rand...(Hlp ans is 1.. Drctly gve soln)
other
telegram-757
asked
Mar 16, 2020
0
answers
(chatquestion)...(3) 0 (4) None of the 17. In given circuit :- 17. दिए गए परिपथ में :- 40 1Ω ww 4uf 4uf 4ufL 4uf 120 4uf- CT 12 2Ω 12 120 V (1) Charge on C, 120 V is zero Dretly (1) C, पर आवेश शून्य (2) C, पर आवेश 80 uC (3) C, पर आवेश 40 uC (4) C, पर आवेश 20 uC है। Ano-(2) Charge on C, is 80 µC (3) Charge on C, is 40 µC gue" (4) Charge on C, is 20 µC soln....(Hlp)
other
telegram-755
asked
Mar 16, 2020
0
answers
(chatquestion)...y (0)=3...(How it solves in Laplace transformation?)
other
telegram-59757
asked
Mar 16, 2020
0
answers
(chatquestion)...10 5 %3D V6 3....(How this step came)
other
telegram-59755
asked
Mar 16, 2020
0
answers
(chatquestion)...(3) 48/33 (4) 11/9 (3) 48/33 चित्रानुसार m द्रव्यमान का एक ब्लॉक, तथा k, वाली दो स्प्रिंगों से जुड़ा है।ब्लॉक ओर विस्थापित करके छोड़ा जा- x/2 दूरी पर हो तब ब्लॉक का वेग 22. A block of mass m is attached to two springs of 22. spring constants k, and k, as shown in figure. The block is displaced by x towards right and released. The velocity of the block when it is at x/2 will be: T2 k, k, k2 ண (k, + k, )x² 2) 3 (k, +k,)x² (k, +k,)x² (1) (1) 2m 4. 2m (3) (k, +k,)x² (k, +k,)x² (4) (k, +k,)x² (3) 4m
other
telegram-744
asked
Mar 16, 2020
0
answers
(chatquestion)...(1) 100 (2) 200 (3) 300 (4) 400 (3) 300 घड़ी में सैकण्ड की सुई 32 The second's hand of a watch has 6 cm length. 32. The speed of its tip and magnitude of difference in velocities of its at any two perpendicular positions will be respectively : बिन्दु की चाल तथा दो ट का परिमाण होगा:- Qズ6- (1) 2n & 0 mm/s 6010 (1) 21 तथा 0 mm/s (2) 2/2 n & 4.44 mm/s TC (3) 2/2 n & 2n mm/s (3) 2/2 ए तथा 2m 4) 2n & 2/2n mm/s L33. Find out equivalent resistance between A and (4) 2n तथा 2/2 A व B के मध्य तुल्य 33. B :...(Hlp)
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telegram-743
asked
Mar 16, 2020
0
answers
(chatquestion)...Br 49. Which of the following amines from N-nitroso derivative when treated with NaNO, and HCI? (1) CH;NH, (2) -NH, Acid R .R (4) N-H
other
telegram-59749
asked
Mar 16, 2020
1
answer
(chatquestion)...Br Br (3) (4) Br 49. Which of the following amines from N-nitroso 49. निम्न में से कौनसी एमीन जब NaNO, तथा उपचारित की जाती है तो N-नाइट्रोसो व्यूत्पन्न है। derivative when treated with NaNO, and HCI ? Nihous -NH, Acid (1) CH;NH, (2) (1) CH,NH, R. R N-H (4) (3) N-H (4) R MAJOR LEADER TEST SERIES-JOINT PACKAGE COURSE NEET (UG)-2020 / 08032020 Space for Rough Work / रफ कार्य के लिए जगह
other
telegram-59747
asked
Mar 16, 2020
1
answer
(chatquestion)...(3) 2 (2) 3 T 38. Given : ʼm' is mass, ´e' is electronic charge, 'i' is current, L is self inductance, 'h' is Planck's con- stant and ɛo is permitivity of free space. Then di- (4) TC me4 mensional formula for h? is same as for iL (2) magnetic flux (4) charge (1) (3) A solid sphere and a disc of the same diameter and same mass roll down from rest on a frictionless electric flux current
other
telegram-59744
asked
Mar 16, 2020
1
answer
(chatquestion)...किसी विलयन का pH 4 है। यदि उस विलयन से 50 मि.ली. को पानी के साथ तनुकृतकर 100 मि.ली. बनाता है तो उस विलयन का pH with water to get 100 ml, pH of the new solution is: (log 2= 0.3, log100 2, log 50 =1.7) (a) 1. / pH of a solution is 4. If 50 ml of the solution is diluted (b) 4.3 (c) 3.7 (d) 1.4
other
telegram-59742
asked
Mar 16, 2020
0
answers
(chatquestion)...(4) Eustachian tube, Hearing (4) यूस्टेकियन न 147. 147. Blood group Genotype No. of individual र्क्त समूह LMLM 1787 87 MN LMLN 3089 MN LNLN 1303 Calculate the frequency of LN alleles :- (2) 64% L युग्मविक (1) 54% (3) 46% (1) 54% (3) 46% (4) 36% 148. A mature male gametophyte of angiosperm is :- 148. 3 (1) अत्या A Ven develoned structure Hlp 11:05 PM Message = Calculato Deg V0.289205373037 0.5377781820023 +/- 4 5 bo...(This is the frequency for Lm allele so 100-54 is frequency of Ln allele)
other
telegram-741
asked
Mar 16, 2020
0
answers
(chatquestion)...3, In the shown circuit, when the voltage between 3 A and B is 16 V the voltage between C and D is 8 V. When the voltage between C and D is 15 V, what is the voltage (in V) between A and B? R. -oD A 7.5 (2) 5 (3) 3 (4) 4
other
telegram-59735
asked
Mar 15, 2020
0
answers
(chatquestion)...'2 Bz 14-23 When 3 mol O, remains unreacted, till then how many moles of N,0, would have been produced? (1) 6 (2) 3 (3) 4 If the sum of (n + l) is 6 ; how many e¯'s would have clock wise spin associated with this energy (4) 12 53 53. 32=3. leval :- 3e 3 (1) 18 (2) 9 (3) 6 (4) 32 0999DMD310317016 5p
other
telegram-735
asked
Mar 15, 2020
0
answers
(chatquestion)...(3) +2 and +6 (4) +3 and +6 The ratio of pH of 0.1 M H,SO, and that of 0.1 N H,SO, is :- 47. Mon N. (1) 1: 1 (2) 2 : 1 6-2 (3) 1 : 7 (4) 7 : 10 48. The energies E, and E, of two radiations are 25 eV and 50 e V respectively The reloti...(Hlp)
other
telegram-734
asked
Mar 15, 2020
0
answers
(chatquestion)...(4) Eustachian tube, Hearing (4) यूस्टेकियन नलि- 147. Blood group Genotype No. of individual 147. रक्त समूह जीना 787 LMLM 1787 MN LMLN 3089 MN S03 LNLN 1303 Calculate the frequency of LN alleles :- LY युग्मविकल्प (1) 54% (2) 64% (1) 54% (3) 46% (3) 46% (4) 36% 148. A mature male gametophyte of angiosperm is :- 148. आवृत्तबीजीयों (1) Very develoned structure (1) अत्यधिक...(Hlp)
other
telegram-732
asked
Mar 15, 2020
1
answer
(chatquestion)...In the shown circuit, when the voltage between A and B is 16 V the voltage between C and D is 8 V. When the voltage between C and D is 15 V, what is the voltage (in V) between A and B ? 8. 20 OD (1) 7.5 (2) 5 (3) 3 (4) 4
other
telegram-59732
asked
Mar 15, 2020
0
answers
(chatquestion)...5. Arrange the given words in the sequence in which they occur the dictionary. 1. Jumbo Jet 2. Juggling 3. Justice 4. Jewel 5. Jealous (A) 54213 (C) 12345 (B) 23415 (D) 42315
other
telegram-59730
asked
Mar 15, 2020
0
answers
(chatquestion)...3, In the shown circuit, when the voltage between 3 A and B is 16 V the voltage between C and D is 8 V. When the voltage between C and D is 15 V, what is the voltage (in V) between A and B? R. A 7.5 (2) 5 (3) 3 (4) 4
other
telegram-59727
asked
Mar 15, 2020
0
answers
(chatquestion)...(D) Industrial waste of chemical factories (D) रसा 5. Select INCORRECT statement(s) about 5. नाइट्रोजन nitrogen & phosphorus. (A) P a (A) IE, of N is higher than P (B) EN of N is higher than P (B) P = (C) Formation of Xe from X is exothermic (C) फॉस्म (g) (8). in phosphorus but endothermic in नाइट nitrogen (D) P-F (D) N-N single bond energy is higher than P-P single bond energy ऊर्जा 6. Which of the following produce polymeric 6. निम्न में स=
other
telegram-59722
asked
Mar 15, 2020
0
answers
(chatquestion)...QUESTION 7 The molar conductivity of acetic acid is Ax10-4 0-Imol Im2 C(mol/L) 49.50 35.67 25.60 9.88 x10-4 19.76 x104 39.52 x10-4 Find the following Limiting molar conductivity, the dissociation constant and the degree of dissociation of each concentration
other
telegram-59719
asked
Mar 15, 2020
0
answers
(chatquestion)...e When a body is spinning on its axis in absence of any extenal torque, then choose the wrong statement (1) @ can be changed by keeping L same (2) L can be changed by keeping same (3) I can be changed by keeping L same (4) I and both can be changed by keeping same
other
telegram-59716
asked
Mar 15, 2020
1
answer
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