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Physics

Physics
An object of 10 kg is moving with a speed of 2 m/s. The kinetic energy of the object is

10 J
40 J
20 J
25 J

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Physics
A bottle of sodalime is grasped by the neck and swung briskly in a vertical circle, Near which portion of the bottle do the bubbles collect?

In the middle of the bottom
Near the bottom
Near the neck
Bubbles remain distributed uniformly

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Physics
A gradual increase in loudness is known as

None of these
Timbre
Crescendo
Fortissimo

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Physics
The period of revolution of a geostationary satellite is

30 days
24 hours
Changing continuously
365 days

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Physics
Flight Recorder is technically called :

Dark box
Blind box
Black box
Altitude meter

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Physics
In very cold countries alcohol is used as a thermometric liquid because

Alcohol is a poor conductor of heat
It will not stick to the glass tube
Its freezing point is very low
Alcohol can be coloured for its level to be seen easily

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