A parallel beam of monochromatic light of wavelength 663 nm is incident on a totally reflecting plane mirror. The angle of incidence is `60^@` and the number of photons striking the mirror per second is `(1.0 xx (10^19))`. Calculate the force exerted by the light beam on the mirror.

A parallel beam of monochromatic light of wavelength 663 nm is incident on a totally reflection plane mirror. The angle of incidence is 60^@ and the number of photons striking the mirror per second is 1.0xx10^19 . Calculate the force exerted by the light beam on the mirror.

A parallel beam of monochromatic light of wavelength 600nm is incident on a totally reflecting plane mirror. The angle of incident is 60^(@) and the number of photon striking the mirror per second is 2.0xx10^(19) . The force exerted by the light beam on the mirror is axx10^(-8)N . what is the integer value of a ? Given h=6.6xx10^(-34)Js

A parellel beam of monochromatic light of wavelength 500 nm is incident normally on a perfectly absorbing surface. The power through any cross section of the beam is 10 W. Find (a) the number of photons absorbed per second by the surface and (b) the force exerted by the light beam on the surface.

A light ray is incident normally on a plane mirror. The angle of reflection will be

Light of wavelength 221 nm falls on a totally reflecting plane mirror at an angle 30^@ with the mirror. If 10^20 photons are striking the mirror per second , then what will the force exerted on the mirror ?

Light of wavelength 221 nm falls on a totally reflecting plane mirror at an angle 30^@ with the mirror . If 10^(20) photons are striking the mirror per second, then the force exerted on the mirror is F = alpha xx 10^(-7)N , Find the value of alpha {:(0,1,2,3,4,5,6,7,8,9):}

When a ray of light is incident normally on a plane mirror then the angle of reflection will be