Dual Nature Of Light Question 268
Question: The work function of a photoelectric material is 3.3 eV. The threshold frequency will be equal to [UPSEAT 1999]
Options:
A) $ 8\times 10^{4}Hz $
B) $ 8\times 10^{56}Hz $
C) $ 8\times 10^{10}Hz $
D) $ 8\times 10^{14}Hz $
Show Answer
Answer:
Correct Answer: D
Solution:
$ {\nu_{0}}=\frac{W_{0}}{h}=\frac{3.3\times 1.6\times {{10}^{-19}}}{6.6\times {{10}^{-34}}}=8\times 10^{14}Hz $
BETA
