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

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

Light with an energy flux of 18 W//cm^(2) falls on a non-reflecting surface at normal incidence. If the surface has an area of 30 cm^(2) , the total momentum delivered (for complete absorption) during 30 minutes is: (a) 36xx10^(-5) kg m/s (b) 36xx10^(-4) kg m/s (c) 108xx10^(4) kg m/s (d) 1.08xx10^(7) kg m/s

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

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

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.