Physics · PYQ NEET UG 2020

Light with an average flux of \( 20\text{ W/cm}^2 \) falls on a non-reflecting surface at normal incidence having surface area \( 20\text{ cm}^2 \). The energy received by the surface during time span of \( 1\text{ minute} \) is

1. A
   \( 12 \times 10^3\text{ J} \)
2. B
   \( 24 \times 10^3\text{ J} \)
3. C
   \( 48 \times 10^3\text{ J} \)
4. D
   \( 10 \times 10^3\text{ J} \)