Dual Nature Of Light Question 228

Question: Frequency of photon having energy 66 eV is [CPMT PMT 1997]

Options:

A) $ 8\times {{10}^{-15}}Hz $

B) $ 12\times {{10}^{-15}}Hz $

C) $ 16\times 10^{15}Hz $

D) None of these

Show Answer

Answer:

Correct Answer: C

Solution:

$ E=h\nu \Rightarrow \nu =\frac{E}{h}=\frac{66\times 1.6\times {{10}^{-19}}}{6.6\times {{10}^{-34}}} $ $ =16\times 10^{15}Hz $