Question

Read the above assertion and reason and choose the correct option regarding it.

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Correct option is C)

$λ=Ph =mvh $

For
an electron to exist in a nucleus, its de Broglie wavelength
($λ$) and the diameter of a nucleus ($d$) must have the
following relation:

$2λ <d$

Now putting value of de Broglie's wavelength,

$mvh <2d$ $or$ $v>2mdh $

Putting
value of $h$, $m$ (mass of electron), and the order of diameter of
nucleus ($d$), we get $v>c$, where $c$ is the speed of
light$=3×10_{8}$, which is clearly not possible.

So, an electron
cannot exist inside the nucleus.

So, Assertion is correct but Reason is incorrect

So, Assertion is correct but Reason is incorrect

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