Dual Nature of Radiation — JEE Main 2019 · 10 Apr, Evening shift · Q6598 · Alror
Dual Nature of Radiation
JEE Main 2019 · 10 Apr, Evening shift · Q6598
PhysicsEasy145×since 2002Q6598
A 2 mW laser operates at wavelength of 500 nm. The number of photons that will be emitted per second is :
[Given Planck's constant h = 6.6 × 10^–34 Js, speed of light c = 3.0 × 10⁸
m/s]