Question

The mass of electron is kg.Planck's constant is Js then the uncertainty involved in the measurement of velocity within a distance of 0.1 is :

A

B

C

D

Hard

Solution

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Correct option is D)

According to Heisenberg's uncertainity principle,
Here,
Planck's constant
Uncertainity in position
Uncertainity in momentum

As we know that,


Given that-
uncertainity in velocity



Hence the uncertainity in velocity is .

Solve any question of Structure of Atom with:-

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