Q. The energy of X-ray photon is $3.3 \times 10^{- 16}\ $J. Its frequency is
A) $2 \times 10^{19}\ Hz$
B) $5 \times 10^{18}\ Hz$
C) $5 \times 10^{17}\ Hz$
D) $5 \times 10^{16}\ Hz$
Explanation
(c) $v = E/h = 3.3 \times 10^{- 6}\ /6.6 \times 10^{- 34}\ $
$= 5 \times 10^{17}\ Hz$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.