JEE Main 202117 Mar, Morning shiftPhysicsMediumElectromagnetic Waves120× since 2002
If 2.5 10^6 N average force is exerted by a light wave on a non-reflecting surface of 30 cm² area during 40 minutes of time span, the energy flux of light just before it falls on the surface is ___________ W/cm². (Round off to the Nearest Integer)
(Assume complete absorption and normal incidence conditions are there)