Given : The mass of electron is $9.11 \times {10^{ - 31}}{\rm{kg}}$ and Planck constant is $6.626 \times {10^{ - 34}}{\rm{\;Js}},$ the uncertainty involved in the measurement of velocity within a distance of $0.1\;$ is:

$5.79 \times {10^6}{\rm{\;m\;}}{{\rm{s}}^{ - 1}}$

$5.79 \times {10^8}{\rm{\;m\;}}{{\rm{s}}^{ - 1}}$

$5.79 \times {10^5}{\rm{\;m\;}}{{\rm{s}}^{ - 1}}$

$5.79 \times {10^7}{\rm{\;m\;}}{{\rm{s}}^{ - 1}}$

NEET UG CHEMISTRY MCQ: STRUCTURE OF ATOM

1 Hard

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Application +4 | -1

Given : The mass of electron is

9.11 \times {10^{ - 31}}\mathrm{kg}

and Planck constant is

6.626 \times {10^{ - 34}}\mathrm{\;Js},

the uncertainty involved in the measurement of velocity within a distance of

0.1\;

is:

View answer and explanation

Correct option: C

5.79 \times {10^6}\mathrm{\;m\;}{\mathrm{s}^{ - 1}}

Option C (

5.79 \times {10^6}\mathrm{\;m\;}{\mathrm{s}^{ - 1}}

) is correct because it represents the uncertainty in velocity calculated using the Heisenberg uncertainty principle.

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