Dual Nature Of Light Question 287
Question: When yellow light is incident on a surface, no electrons are emitted while green light can emit. If red light is incident on the surface, then [MNR 1998; MP PET 2000; MH CET 2000]
Options:
A) No electrons are emitted
B) Photons are emitted
C) Electrons of higher energy are emitted
D) Electrons of lower energy are emitted
Show Answer
Answer:
Correct Answer: A
Solution:
$ {\lambda_{r}}>{\lambda_{y}}>{\lambda_{g}} $ . Here threshold wavelength $ <{\lambda_{y}} $ .
BETA
