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Electron, Photon, Photoelectric Effect and X-Rays — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectron, Photon, Photoelectric Effect and X-Rays1 Mark
MCQ
Photon and electron are given same energy ($10^{-20} \mathrm{~J}$). Wavelength associated with photon and electron are $\lambda_{\mathrm{ph}}$ and $\lambda_{\mathrm{el}}$ then correct statement will be
  • ✓
    $\lambda_{\mathrm{ph}}>\lambda_{\mathrm{el}}$
  • B
    $\lambda_{\mathrm{ph}}<\lambda_{\mathrm{el}}$
  • C
    $\lambda_{\mathrm{ph}}=\lambda_{\mathrm{el}}$
  • D
    $\frac{\lambda_{\mathrm{ph}}}{\lambda_{\mathrm{el}}}=\mathrm{C}$
✓

Answer

Correct option: A.
$\lambda_{\mathrm{ph}}>\lambda_{\mathrm{el}}$
(a) $\lambda_{\mathrm{ph}}>\lambda_{\mathrm{el}}$

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