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
(a) 3Y=K(1-σ)                  (b) K=(9ηY)/(Y+η)...
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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) Y< η                  ...
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Jun 3, 2022
(a)Â Â 4 : 1Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ...
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Jun 3, 2022
(a)Â Â Too less (b)Â Â Greater than all matters (c)Â Â Less than all matters (d)Â Â Zero Answer-b
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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)Â Young’s modulus (b)Â Â Coefficient of volume elasticity (c)Â Â Modulus of rigidity (d)Â Poisson’s ratio Answer-b
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Jun 2, 2022
(a)Â Â w (b)Â Â w/2 (c)Â Â 3w/4 (d)Â Â w/4 Ans. d
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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
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Jun 2, 2022
(a)Â Â v/L (b)Â 2v/L (c)Â Â v/3L (d)Â v/4L Ans. a
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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) 1/4Â RQ (b) 3/8 RQ (c)Â 3/5 RQ (d) 2/5 RQ Ans. c
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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
(a)Â 0.01Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ...
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Jun 2, 2022
(a)  Young                                             (b)  Bulk (c)  Maxwell               ...
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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)Â Â Product of volume and its pressure (b)Â Â 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)Â It will remain unchanged (b)Â Â It will rise (c)Â Â It will fall (d)Â 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)Â Â 4 times that in the other pipe (b)Â Â 1/4 times that in the other pipe (c)Â Â 2 times that...
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May 28, 2022
(a)Â Liquid of high viscosity and high density flowing through a pipe of small radius (b)Â Â 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
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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)Â Â Equal of that of water (b)Â Â Half the density of water (c)Â Â Double the density of water (d)Â Â The...
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May 28, 2022
(a)Â Â Both pieces must have equal weights (b)Â Â Both pieces must have equal densities (c)Â Â Both pieces must have equal...