Dual Nature Of Light Question 272
Question: If in a photoelectric experiment, the wavelength of incident radiation is reduced from 6000 Å to 4000 Å then [MP PMT 1999]
Options:
A) Stopping potential will decrease
B) Stopping potential will increase
C) Kinetic energy of emitted electrons will decrease
D) The value of work function will decrease
Show Answer
Answer:
Correct Answer: B
Solution:
Stopping potential $ V_{0}=\frac{hc}{e}[ \frac{1}{\lambda }-\frac{1}{{\lambda_{0}}} ] $ . As $ \lambda $ decreases so $ V_{0} $ increases.
BETA
