Dual Nature Of Light Question 302

Question: If threshold wavelength for sodium is 6800Å then the work function will be [RPET 2001]

Options:

A) $ 1.8eV $

B) $ 2.5eV $

C) $ 2.1eV $

D) $ 1.4eV $

Show Answer

Answer:

Correct Answer: A

Solution:

$ W_{0}=\frac{12375}{6800}=1.8eV $