Physics
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Jun 3, 2022
The Young’s modulus of the material of a wire is 6×1012 N/m2 and there is no transverse strain in it,...
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Jun 3, 2022
A smooth uniform rod of length L and mass M has two identical beads of negligible size, each of mass...
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Jun 3, 2022
(a) Shearing (b) Longitudinal (c) Volume ...
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Jun 3, 2022
Two discs of moment of inertia I1 and I2 and angular speeds ω1 and ω2 are rotating along collinear axes passing...
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Jun 3, 2022
(a) Too less (b) Greater than all matters (c) Less than all matters (d) Zero Answer-b (11)
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Jun 3, 2022
19. The pressure applied from all directions on a cube is P. How much its temperature should be raised to...
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Jun 3, 2022
21. For a constant hydraulic stress on an object, the fractional change in the object’s volume (ΔV/V) and its bulk...
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Jun 3, 2022
A circular platform is free to rotate in a horizontal plane about a vertical axis passing through its center. A...
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Jun 2, 2022
20. The pressure of a medium is changed from 1.01 × 105 Pa to 1.165 × 105 Pa and change...
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Jun 2, 2022
(a) Young’s modulus (b) Coefficient of volume elasticity (c) Modulus of rigidity (d) Poisson’s ratio Answer-b (12)
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Jun 2, 2022
(a) w (b) w/2 (c) 3w/4 (d) w/4 Ans. d (17)
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Jun 2, 2022
(a) Mω (b) (M+4m)ω/M (c) (M-4m)ω/M+4m (d) Mω/4m Ans. a (9)
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Jun 2, 2022
(a) v/L (b) 2v/L (c) v/3L (d) v/4L Ans. a (12)
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Jun 2, 2022
(a) Zero (b) Unity (c) Infinity ...
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Jun 2, 2022
(a) Is equal to its volume V (b) Is equal to p/2 (c) Is equal to its pressure p (d) ...
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Jun 2, 2022
16.Coefficient of isothermal elasticity Eθ and coefficient of adiabatic elasticity E∅ are related by (λ = CP/CV) (a)Eθ = λE∅ ...
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Jun 2, 2022
(a) 1/4 RQ (b) 3/8 RQ (c) 3/5 RQ (d) 2/5 RQ Ans. c (102)
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Jun 2, 2022
(a) 1 mm of Hg (b) 13.6 mm of Hg (c) 1.013×105 N/m2 ...
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Jun 2, 2022
(a) 19.6×108 N/m2 (b) 19.6×10-10 N/m2 (c) 19.6×1010 N/m2 ...
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Jun 2, 2022
10. When a pressure of 100 atmosphere is applied on a spherical ball, then its volume reduces to 0.01%. The...
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Jun 2, 2022
9. The compressibility of a material is (a) Product of volume and its pressure (b) The change in pressure per...
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Jun 1, 2022
(2^i-4^j+2^k)N acts at a point metre(3^i +2^j-4^k) from the origin. The magnitude of torque is (a) Zero (b) 24.4 N-m...
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Jun 1, 2022
If the density of the water is 1× 103 Kg/m3 and g=10 m/s 2, then the volume elasticity in...
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Jun 1, 2022
7. The compressibility of water is 4×10-5 per unit atmospheric pressure. The decrease in volume of 100 cubic centimeter of...
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May 28, 2022
The tube is always completely filled with water. In case I tube is horizontal and in case II it is...
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May 28, 2022
(a) It will remain unchanged (b) It will rise (c) It will fall (d) First it will first rise and...
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May 28, 2022
(a) 3.0 m/s (b) 1.5 m/s (c) 1.0 m/s ...
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May 28, 2022
(a) 4 times that in the other pipe (b) 1/4 times that in the other pipe (c) 2 times that...
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May 28, 2022
(a) Liquid of high viscosity and high density flowing through a pipe of small radius (b) Liquid of high viscosity...
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May 28, 2022
(a) Remain at the same height (b) Fall at the rate of 1 cm/hour (c) Fall at the rate of ...
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May 28, 2022
(a) Archimedes’ principle (b) Bernoulli’s theorem (c) Pascal’s law (d) Newton’s laws Answer-a (12)
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May 28, 2022
(a) Viscosity (b) Surface tension (c) Density ...
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May 28, 2022
(a) Rises (b) Falls (c) Unchanged ...
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May 28, 2022
(a) Equal of that of water (b) Half the density of water (c) Double the density of water (d) The...
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May 28, 2022
(a) Both pieces must have equal weights (b) Both pieces must have equal densities (c) Both pieces must have equal...