Light with an energy flux of `25xx10^(4)Wm^(-2)`falls on a perfectly refecting surface at normal incidnce. If thesurface are is `15 cm^(2),` the averge force exerted on the

Light with an enargy flux of 25xx10^(4) Wm^(-2) falls on a perfectly reflecting surface at normal incidence. If the surface area is 15 cm^(2) , the average force exerted on the surface is

Light with an enargy flux of 25xx10^(4) Wm^(-2) falls on a perfectly reflecting surface at normal incidence. If the surface area is 15 cm^(2) , the average force exerted on the surface is

Light with an energy flux of 25xx10^4 Wm^-2 falls on a perfectly reflecting surface at normal incidenc .If the surface area 15cm^2 ,the average force exerted on the surface is

Light with an energy flux of 18 W//cm^(2) falls on a nonreflecting surface at normal incidence. If the surface has an area of 20 cm^(2) , find the average force exerted on the surface during a 30 minute time span.