Ajneesh
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Jun 3, 2022
(a) Zero (b) Infinite (c) Between 0 and ∞ (d) Can not be determined Ans. a (14)
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Jun 3, 2022
A solid sphere rolls down an inclined plane and its velocity at the bottom is v1. Then same sphere slides...
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Jun 3, 2022
(a) 1.4 m/sec (b) 0.14 m/sec (c) 14 m/sec (d) 0.7 m/sec Ans .a (27)
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Jun 3, 2022
(a) 15 : 14 (b) √15:√14 (c) 14 : 15 (d) √14:√15 Ans. d (8)
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Jun 3, 2022
A thin uniform circular ring is rolling down an inclined plane of inclination 30° without slipping. Its linear acceleration along...
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Jun 3, 2022
(a) Ring, disc, sphere (b) Sphere, disc, ring (c) Disc, ring, sphere (d) Sphere, ring, disc Ans. b (20)
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Jun 3, 2022
(a) 5/7 g sin θ (b) 3/5 g sin θ (c) 2/7 g sin θ (d) 2/5 g sin...
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Jun 3, 2022
(a) √(3/4) gh (b) √(4/3)gh (c) √4gh (d) √2gh Ans. b (20)
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Jun 3, 2022
A body of moment of inertia of 3 kg-m2 rotating with an angular velocity of 2 rad/sec has the same...
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Jun 3, 2022
(a) 350 N-m (b) 440 N-m (c) 531 N-m (d) 628 N-m Ans. c (20)
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Jun 3, 2022
(a) 10 J (b) 100 J (c) 500 J (d) 250 J Ans. d (80)
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Jun 3, 2022
(a) 0.12 J–s (b) 12 J–s (c) 1.2 J-s (d) 1.12 J-s Ans. a (22)
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Jun 3, 2022
(a) 0.3 rad/s (b) 5.3 rad/s (c) 10.3 rad/s (d) 89.3 rad/s Ans. c (13)
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Jun 3, 2022
(a) 0.3 rad/s (b) 5.3 rad/s (c) 10.3 rad/s (d) 89.3 rad/s Ans. c (7)
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Jun 3, 2022
Moment of inertia of uniform rod of mass M and length L about an axis through its centre and perpendicular...
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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
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
The position of a particle is given by : →r = (^i+2^j-^k) and momentum →p =(3^i+4^j-2^k) . The angular momentum...
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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
(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) 1/4 RQ (b) 3/8 RQ (c) 3/5 RQ (d) 2/5 RQ Ans. c (105)
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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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May 23, 2022
Two circular discs A and B are of equal masses and thickness but made of metals with densities dA and...
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May 23, 2022
The moment of inertia of a solid sphere of density ρ and radius R about its diameter is (a) (105/176)R5ρ (b) ...
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May 23, 2022
A flywheel of moment of inertia 0.32 kg–m2 is rotated steadily 120 rad/s at by a 50 w electric motor....
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May 23, 2022
The angular velocity of a body is →w= 2^j+3^k+4^k and a torque →τ = ^j+2^k+3^k acts on it. The rotational...
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May 23, 2022
(a) Disc (b) Ring (c) Solid sphere (d) All will make same number of rotations Ans. d (16)
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May 23, 2022
(a) 400% (b) 800% (c) 200% (d) 100% Ans. b (15)
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May 23, 2022
A wheel is rotating with an angular speed of 20 rad/s . It is stopped to rest by applying a...
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May 23, 2022
(a) √4 : √3 (b)√3: √4 (c) √3:√2 (d) √2:√3 Ans. a (6)
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May 23, 2022
c HCl molecule about an axis passing through its centre of mass and perpendicular to the line joining the H+...
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May 23, 2022
Three rings each of mass M and radius R are arranged as shown in the figure. The moment of inertia...
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May 23, 2022
Four thin rods of same mass M and same length l, form a square as shown in figure. Moment of...
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May 23, 2022
A circular disc X of radius R is made from an iron plate of thickness t, and another disc Y...
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May 23, 2022
The string of a simple pendulum is replaced by a uniform rod of length L and mass M. If the...
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May 23, 2022
A ball of radius 11 cm and mass 8 kg rolls from rest down a ramp of length 2m. The...
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May 23, 2022
A ring takes time t1 in slipping down an inclined plane of length L and takes time t2 in rolling...
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May 23, 2022
A hollow cylinder is rolling on an inclined plane, inclined at an angle of 30° to the horizontal. Its speed...