Test Index

Dual Nature of matter and Radiation Part 2

Section: Physics

© examsnet.com

Question : 1 of 100

Marks: +1, -0

Number of photons of equal energy emitted per second by a 6 mW laser source operating at 663 nm is ____ (Given : h=6.63×10−34 J.s and c=3×108m∕s )

[28 Jan 2026 Shift 2]

10×1015
5×1016
5×1015
2×1016

Go to Question:

Next Question