Dual Nature Of Light Question 438
Question: A photon, an electron and a uranium nucleus all have the same wavelength. The one with the most energy
Options:
A) Is the photon
B) Is the electron
C) Is the uranium nucleus
D) Depends upon the wavelength and the properties of the particle.
Show Answer
Answer:
Correct Answer: A
Solution:
[a] $ \lambda =\frac{h}{mv}=\frac{h}{\sqrt{2mE}}: $
$ \therefore \ E=\frac{h^{2}}{2m{{\lambda }^{2}}} $ $ \lambda $ is same for all, so $ E\propto \frac{1}{m} $ . Hence energy will be maximum for particle with lesser mass.
BETA
