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NEET
Exam
NEET
Subject
Physics
Chapter
Dual Nature of Matter

NEET · Physics · Dual Nature of Matter

Question: Monochromatic light of frequency 6.0 ×10 14 Hz is...

Question: Monochromatic light of frequency 6.0 ×1014Hz is produced by a laser. The power emitted is 2.0 ×10–3W. How many photons per second, on average, are emitted by the source?

Options

  1. A1.0 ×1014photons per second.
  2. B2.0 ×1015photons per second.
  3. C3.0×1015photons per second.
  4. D5.0 ×1015photons per second.

Correct answer

D. 5.0 ×1015photons per second.

Step-by-step solution

Correct Option is : (D)
5.0 ×1015photons per second.
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