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Physics · 2025 · 1 mark
CBSE 2025 · Region 1 · Set 2 · Q9
A source produces monochromatic light of frequency 5.0 × 10^14 Hz and the power emitted is 3.31 mW. The number of photons emitted per second by the…
A source produces monochromatic light of frequency $\displaystyle 5.0 \times 10^{14} \mathrm{~Hz}$ and the power emitted is $\displaystyle 3.31$ mW. The number of photons emitted per second by the source, on an average is
Official answer
(A)
$\displaystyle 10^{16}$
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