Q. What is the frequency of photon whose momentum is $1.1 \times 10^{- 23}kg\ ms^{- 2}?$
A) $5 \times 10^{16}Hz$
B) $5 \times 10^{17}Hz$
C) $0.5 \times 10^{18}Hz$
D) $5 \times 10^{18}Hz$
Explanation
(d)
$\lambda = \frac{h}{p}$
$v = \frac{c}{\lambda}$
$v = \frac{3 \times 10^{8} \times 1.1 \times 10^{- 23}}{6.6 \times 10^{- 34}}$
$\mathbf{\ \ \ \ =}5.0 \times 10^{18}Hz$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.