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- 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 :
Ajay
300 Points- Mohammad Anas (13750) Points
- Latest Answer: 7 months ago
- In: NEET
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 :
(1) 10 × 103 J
(2) 12 × 103 J
(3) 24 × 103 J
(4) 48 × 103 J
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