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In an atom an electron is moving with a ...

In an atom an electron is moving with a speed of 600 `ms^(-1)` with an accuracy of 0.005 % certain ty w ith w hich the p osition of the electron can be located is....

A

`5.10 xx 10^(-3)` m

B

`3.84 x 10^(-3)` m

C

`1.92 xx 10^(-3)` m

D

`1.52 xx 10^(-4)` m

Text Solution

Verified by Experts

The correct Answer is:
C
speed v=600 `ms^(-1) xx0.005 xx10^(-2)`
accuracy =0.005 %
mass of electron =`9.1xx10^(-3)` jkg
`=(6.26xx10^(-34))/(4xx3.141xx9.11xx10^(-31)xx6xx0.005)`
`=1.929xx10^(-3)` m
`=1.93xx10^(-3)` m
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