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Light with an average flux of \( 20 \mathrm{~W} / \mathrm{cm}^{2} \) falls on nonreflecting surface at normal incidence …

Q1

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

[NEET 2020]

a

\( 12 \times 10^{3} \mathrm{~J} \)

b

\( 24 \times 10^{3} \mathrm{~J} \)

c

\( 48 \times 10^{3} \mathrm{~J} \)

d

\( 10 \times 10^{3} \mathrm{~J} \)

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