Instrument used for measuring specific gravity is called _____.
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The focal length of a concave mirror with a radius of curvature of 20.0 cm is :
The SI unit of acceleration is __________.
1 m/s equals ____________ km/hr
The area under a Velocity-Time graph represents ______________.
A raised hammer possesses
If the resistance of a conductor is reduced to half its initial value, then the heating effect in the conductor will become ___.
Optical fibre works on which of the following principle of light?
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