If a body moves with a uniform speed in a circular motion, then______.
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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 __________.
The area under a Velocity-Time graph represents ______________.
1 m/s equals ____________ km/hr
If the resistance of a conductor is reduced to half its initial value, then the heating effect in the conductor will become ___.
Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s
Optical fibre works on which of the following principle of light?