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Physics

Physics
The focal length of a concave mirror with a radius of curvature of 20.0 cm is :

20 cm
5 cm
15 cm
10 cm

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Physics
A man stands on the pan of a balance holding a fish in his right hand and bucket of water in his left hand. If he transfers the fish into the bucket, the total weight on the pan

Remains the same
Increases
First increases and then decreases
Decreases

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Physics
The characteristic invalid for heat radiation is that it travels :

In a straight line
With the speed of light
In all directions
Heating the medium through which it passes

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Physics
The flow of thermal energy is called

Voltage
Potential
Heat
Current

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Physics
The moment of inertia of a body does not depend upon

The angular speed of the body
The mass distribution in the body
The mass of the body
The axis of rotation of the body

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Physics
Sound travels at the fastest speed in

air
steel
vacuum
water

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MORE MCQ ON Physics

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