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Subject:Physics

A can filled with water is revolved in a vertical circle of radius 4 metre and the water does not fall down. The time period of revolution will be:

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A.) 10 sec
B.) 1 sec
C.) 8 sec
D.) 4 sec
Answer is option : D
Subject:Physics

A bucket tied at the end of a 1.6 m long string is whirled in a vertical circle with a constant speed. What should be the minimum speed so that the water from the bucket does not spill when the bucket is at the highest position?

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A.) 6.25 m/sec
B.) 4 m/sec
C.) 16 m/sec
D.) None of These
Answer is option : B
Subject:Physics

A body is moving along a circular path with variable speed. It has

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A.) a radial acceleration
B.) zero acceleration
C.) both tangential and radial accelerations
D.) a tangential acceleration
Answer is option : C
Subject:Physics

A body is traveling in a circle at constant speed. It

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A.) has an outward radial acceleration
B.) has constant velocity
C.) has no acceleration
D.) has an inward acceleration
Answer is option : D
Subject:Physics

A body of mass 500 gram is rotating in a vertical circle of radius 1 m. What is the difference in its kinetic energies at the top and the bottom of the circle?

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A.) 4.9 J
B.) 9.8 J
C.) 19.8 J
D.) 2.8 J
Answer is option : B
Subject:Physics

A body of mass 100 gram, tied at the end of a string of length 3 m rotates in a vertical circle and is just able to complete the circle. If the tension in the string at its lowest point is 3.7 N, then its angular velocity will be ______ (take g = 10 m/s2).

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A.) 3 rad/s
B.) 2 rad/s
C.) 4 rad/s
D.) 1 rad/s
Answer is option : A
Subject:Physics

A body is allowed to slide on a frictional less track from rest under gravity. The track ends in a circular loop of diameter D. What should be the minimum height of the body in terms of D, so that it may successfully complete the loop?

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A.) D
B.) 4/5 D
C.) 5/4 D
D.) 2D
Answer is option : C
Subject:Chemistry

The distillation technique most suited for separating glycerol from spent-lye in the soap industry is ?

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A.) Fractional distillation
B.) Steam distillation
C.) Distillation under reduced pressure
D.) Simple distillation
Answer is option : D
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