Test Index

JEE Main Physics Class 12 Dual Nature of Matter and Radiation Part 2 Questions

© examsnet.com

Question : 63

Total: 65

The stopping potential for photoelectrons emitted from a surface illuminated by light of wavelength 6630

is 0.42V. If the threshold frequency is x×1013∕s, where x is____ (nearest integer).
(Given, speed light =3×108m∕s, Planck's constant =6.63×10−34‌Js )

[26-Jun-2022-Shift-2]

Your Answer:

Go to Question:

Prev Question

Next Question