vacuum
air
water
hydrogen
An object which absorbs all colours & reflects none appears:
An object with a constant speed
An object with a mass of 22 kg moving with a velocity of 5 m/s possesses a kinetic energy of :
An oil drop spreads over water as
An optically plane surface reflects a beam of light
An ordinary clock loses time in summer. This is because
An under-excited synchronous motor draws current at
Anemometer is an instrument meant for measuring _
Anemometer is used to measure
Angle of friction & angle of repose are
