.Electromagnetic radiation of intensity Iis made incident normally on a perfect non-reflecting surface (i.e.perfect absorber).Then pressure developed on this surface would be ...

A radiation of energy E falls normally on a perfectly reflecting surface.The momentum transferred to the surface

A radiation of energy E falls normally on a perfctly refelecting surface . The momentum transferred to the surface is

If a parallel beam of light having intensity I is incident normally on a perfectly reflecting surface, the force exerted on the surface, equal F. When the surface is held at an angle theta , the force is

Light with an energy flux of 18W//cm^(2) falls on a non-reflecting surface at normal incidence. The pressure exerted on the surface is

The angle made by incident ray of light with the reflecting surface is called

The angle made by incident ray of light with the reflecting surface is called

A radiation of energy 'E'falls normally on a perfectly reflecting surface. The momentum transferred to the surface is (C = Velocity of light)

" of intensity "1.5kW/m^(2)" is incident normally on a perfectly absorbing surface.The pressure exerted by the light on the surface is "n times10^(-6)Pa" .Value of "n" is "