Light with an average flux of 20 W/cm2 falls on a non-reflecting surface at normal incidence having surface area 20 cm2. The energy received by the surface during time span of 1 minute is :

Question

Light with an average flux of 20 W/cm² falls on a non-reflecting surface at normal incidence having surface area 20 cm². The energy received by the surface during time span of 1 minute is :

12 $ \times $ 10³ J

24 $ \times $ 10³ J

48 $ \times $ 10³ J

10 $ \times $ 10³ J

Solution

Please login to view the detailed solution steps...

Go to DASH