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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  1998
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Q)

Uncertainity in position of a $e^–$ and He is similar. If uncertainity in momentum of $e ^–$ is $32 \times 10^ 5$, then uncertainity in momentum of He will be :


( A ) $8 \times 10^5$
( B ) None of these
( C ) $16\times 10^5$
( D ) $32 \times10^5$

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