Less density than dry air.
Less pressure than dry air.
More pressure than dry air.
More density than dry air.
The velocity of sound is …. the density of the medium
The velocity of sound is more in
The velocity of the sound is highest in
The voltage regulation of a transformer is poor at
The voltage stress is maximum in the cable
The wall of a dam is broader at the base
The wall of a dam is made thicker at the bottom than at the top as the pressure exerted by the water on the wall
The wall of a dam is made thicker at the bottom than at the top because the pressure exerted by the water on the wall
The washing machine works on the principle of
The waveform of a certain signal can be studied by