If the K.E. of a particle is doubled, then

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If the K.E. of a particle is doubled, then its momentum will

A

Remain unchanged

B

Be doubled

C

Be quadrupled

D

Increase $\sqrt 2 $ times

If the K.E. of a particle is doubled, then its momentum will

$P = \sqrt {2\,mE} $
$P \propto \sqrt E $
i.e. if kinetic energy of a particle is doubled the its momentum will becomes $\sqrt 2 $times.