Physics Questions

Propagation of sound can be visualised as propagation of _____________ variations in the medium.

If the resistance of a conductor is reduced to half its initial value, then the heating effect in the conductor will become ___.

A body has a weight W on the surface of Earth. What is its weight on a planet whose mass is 15 times that of Earth and a radius that is 4 times that of the earth?

_________ is a natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, especially near the northern or southern magnetic pole.

Resistance switching is normally employed in

The SI unit of acceleration is _______________.

Calculate the frequency (in Hz) of a sound wave of wavelength 5 m travelling with a speed of 360 m/s.

The frequency of direct current is _____________