`50 W//m^(2)` energy density of sunlight is normally incident on the surface of a solar panel. Some part of incident energy (25%) is reflected from the surface and the rest is absorbed. The force exerted on `1m^(2)` surface area will be close to `(c=3xx10^(8) m//s)`:
A "50 W m"^(-2) energy density of sunlight is incident normally on the surface of a solar panel. Some part of incident energy (25%) is reflected from the surface and the rest is absorbed. The force exerted on 1m^(2) surface area will be close to (c=3xx10^(8)ms^(-1))
If the intensity of the incident radio wave of 1 "watt"//m^2 is reflected by the surface, find the pressure exerted on the surface.
If the intensity of the incident radiowave is 1 "watt"//m^2 is absorbed by the surface, find the pressure exerted on the surface.
A radio wave of intensity / isn reflcted by a surface. Find intersity (l), if pressure exerted on the surface is 2xx10^(-8)N//m^(2) .
A plane electromagnetic wave is incident on a plane surface of area A, normally and is perfectly reflected. If energy E strikes the surface in time t then average pressure exerted on the surface is (c = speed of light)
A beam of white light is incident normally on a plane surface absorbing 50% of the light and reflecting the rest. If the incident beam carries 10 W of power, find the force exerted by it on the surface.
A beam of white light is incident normally on a plane surface absorbing (70%) of the light and reflecting the rest. If the incident beam carries 10 W of power , find the force exerted by it on the surface .
A parallel beam of light is incident normally on a plane surface absorbing 40% of the light and reflecting the rest. If the incident beamm carries 60 W of power, the force exerted by it on the surface is
