Dual Nature Of Light Question 389
Question: Photoelectrons are ejected from a metal when light of frequency $ \nu $ falls on it. Pick out the wrong statement from the following.
Options:
A) No electrons are emitted if $ \nu $ is less than Wl h, -where W is the work function of the metal
B) The ejection of the photoelectrons is instantaneous.
C) The maximum energy of the photoelectrons is hi).
D) The maximum energy of the photoelectrons is independent of the intensity of the light.
Show Answer
Answer:
Correct Answer: C
Solution:
[c] According to photo-electric equation : $ K.E{.{\max }}=hv-hv{0} $ (Work function) Some sort of energy is used in ejecting the photoelectrons.
BETA
