Pressure difference
Capillary action
Gravitational force
Low viscosity of oil
The oil in the wick of lamp rises due to
The oldest type of energy known to man is
The operation of the electric generator and motor is based on the interaction between
The ordinary and maximum tolerance limit of sound by human being is
The Ozone Layer restricts from
The part of the eye having the larges refractive index is:
The particle required to continue the chain process of Uranium fission is:
The period of pendulum depends upon
The period of revolution of a geostationary satellite is
The phenomenon of change in direction of light when it passes from one medium to another is called