Dual Nature Of Light Question 422
The momentum of a photon is $ 2\times {{10}^{-23}} $ kg-m/sec. Its energy is
Options:
A) $ 0.61\times {{10}^{-26}}erg $
B) $ 2.0\times {{10}^{-26}}erg $
C) $ 6\times {{10}^{-6}}erg $
D) $ 6\times {{10}^{-8}}erg $
Show Answer
Answer:
Correct Answer: C
Solution:
$ p=\frac{E}{c},\Rightarrow E=p\times c=2\times {{10}^{-16}}\times (3\times 10^{8}) $ $ =6\times {{10}^{-8}}erg. $
BETA
