Monochromatic light of frequency 6 × 10 14 Hz is produced by a laser. The power emitted…
Physics · Class 12 · CBSE — Dual Nature of Radiation & Matter
Monochromatic light of frequency 6 × 1014 Hz is produced by a laser. The power emitted is 2 × 10–3 W. The number of photons emitted per second is (Given h = 6.63 × 10–34 J s)
- 2 × 1015
- 3 × 1015
- 4 × 1015
- 5 × 1015
Answer
(D) 5 × 10 15
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