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Welcome to the Science Quiz 58
This is a timed quiz. You will be given 15 seconds per question. Are you ready? 15
If the KE of a body becomes four times of its initial value, then the new momentum will be more than its initial momentum by?
Correct!
Wrong!
If a ball is thrown upwards from the surface of earth:
Correct!
Wrong!
Fast neutrons can easily be slow down by
Correct!
Wrong!
A bullet in motion hits and gets embedded in a solid block resting on a frictionless table. What is conserved?
Correct!
Wrong!
A bomb travelling in a parabolic path under the effect of gravity, explodes in mid air. The centre of mass of fragments will:
Correct!
Wrong!
A body is hanging from a rigid support by an inextensible string of length ‘l’ . It is struck inelastically by an identical body of mass m with horizontal velocity v = √(2gL) , the tension in the string increases just after the striking by ?
Correct!
Wrong!
A massive ball moving with speed v collides with a tiny ball having a mass very much smaller than the mass of the first ball. If the collision is elastic, then immediately after the impact, the second ball will move with a speed approximately equal to:
Correct!
Wrong!
The centre of mass of a body:
Correct!
Wrong!
Science Quiz 58
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