Dual Nature Of Light Question 219
Question: The approximate wavelength of a photon of energy 2.48 eV is [MP PMT 1987]
Options:
A) 500 Å
B) 5000 Å
C) 2000 Å
D) 1000 Å
Show Answer
Answer:
Correct Answer: B
Solution:
By using $ E,(eV)=\frac{12375}{\lambda ({\AA})} $
$ \Rightarrow \lambda ,=\frac{12375}{2.48}=4989.9,{\AA},\approx ,5000,{\AA} $
BETA
