Dual Nature Of Light Question 432
Question: The photoelectric threshold wavelength of a certain metal is 3000 $ \overset{o}{\mathop{A}}, $ . If the radiation of 2000 $ \overset{o}{\mathop{A}}, $ is incident on the metal
Options:
A) Electrons will be emitted
B) Positrons will be emitted
C) Protons will be emitted
D) Electrons will not be emitted
Show Answer
Answer:
Correct Answer: A
Solution:
[a] For electron emission $ {\lambda_{incident}}<{\lambda_{0}} $