X-rays of wavelength, $\lambda=1 Å

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Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Waves

Question:

X-rays of wavelength, $\lambda=1 Å$ have frequency:

Options:

$3 \times 10^{14}$ Hz

$1 \times 10^{15}$ Hz

$3 \times 10^{16}$ Hz

$3 \times 10^{18}$ Hz

Correct Answer:

$3 \times 10^{18}$ Hz

Explanation:

The correct answer is Option (4) → $3 \times 10^{18}$ Hz