NEET Physics Applications of EM Waves MCQ Question with Solution

If the wavelength of an X-ray is 10^-10 m, what is the corresponding frequency of this X-ray? (Assume the speed of light is 3 x 10^8 m/s)

A

3 x 10^18 Hz

B

3 x 10^16 Hz

C

3 x 10^15 Hz

D

3 x 10^14 Hz

Correct Answer

Option A

Detailed Explanation

The frequency $f$ can be calculated using the equation $c = \lambda f$ , where $c$ is the speed of light $3 \times 10^8$ m/s and $\lambda$ is the wavelength $10^{-10}$ m. Solving gives $f = \frac{3 \times 10^8}{10^{-10}} = 3 \times 10^{18}$ Hz.

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NEET Physics Applications of EM Waves MCQ Question

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