The wavelength associated with 1 $M e V$ proton is

28.6

p m

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2.86

p m

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2.86

f m

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28.6

f m

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Solution

The correct option is C 28.6 $f m$
The wavelength and the energy is related by:

$λ = \frac{0.286}{\sqrt{10^{6}}} = 28.6 f m$

So, the answer is option (D).

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