Q. If we consider electron and photons of the same wavelength, then they will have the same

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A

velocity

B

angular momentum

C

energy

D

momentum

Solution:

De Broglie wavelength, $=\frac{h}{p}$.
since wavelength is same for electron and photons
$p=\frac{h}{\lambda}$
$\therefore $ momentum is same for electron and photons.

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