A metal has a work function \( h v_{0} \). If photon of \( 2 \mathrm{~h} v_{0} \) falls on the s...
Channel:
Subscribers:
449,000
Published on ● Video Link: https://www.youtube.com/watch?v=CXojpCXVjQo
0A metal has a work function \( h v_{0} \). If photon of \( 2 \mathrm{~h} v_{0} \) falls on the surface, the electron comes out with a velocity of \( 4 \times 10^{6} \mathrm{~m} / \mathrm{s} \). If photon energy is increased to \( 5 \mathrm{~h} v_{0} \), the maximum velocity of photon electron will be
(A) \( 2 \times 10^{7} \mathrm{~m} / \mathrm{s} \)
(B) \( 4 \times 10^{7} \mathrm{~m} / \mathrm{s} \)
(C) \( 2 \times 10^{6} \mathrm{~m} / \mathrm{s} \)
(D) \( 8 \times 10^{6} \mathrm{~m} / \mathrm{s} \)
ЁЯУ▓PW App Link - https://bit.ly/YTAI_PWAP
ЁЯМРPW Website - https://www.pw.live