In compton scattering process, the incident X -radiation is scattered at an angle 60^ ^ ^ . The wavelength of the scattered radiation is 0.22 Å . The wavelength of the incident X -radiation in Å units is

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Quantrex Academy · Accepted Answer

Correct answer: D. 0.208

For Compton effect we have the relation

\lambda_2-\lambda_1=\frac{h}{m_0 c}(1-\cos \theta)

\lambda_1=

wavelength of incident radiation

\lambda_2=

wavelength of scattered radiation

\begin{aligned}<br/>\therefore 0.22-\lambda_1 & =0.024(1-\cos 60) \\<br/>0.22-\lambda_1 & =0.024\left(1-\frac{1}{2}\right) \\<br/>0.22-\lambda_1 & =0.024 \times \frac{1}{2} \\<br/>\lambda_1 & =0.22-0.012=0.208 Å<br/>\end{aligned}

In compton scattering process, the incident X -radiation is...

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