Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Waves

Question:

The energy of X-ray photon is 3.3 × 10−16 J. Its frequency is

Options:

2 × 1019 Hz

5 × 1018 Hz

5 × 1017 Hz

5 × 1016 Hz

Correct Answer:

5 × 1017 Hz

Explanation:

$v =\frac{E}{h}= \frac{3.3 ×10^{-6}}{6.6 × 10^{-34}}$

$=5 × 10^{17}$ Hz