According to the heisenberg uncertainty principle, it is impossible to know precisely both the position and the of an electron

Momentum

Explanation:

Heisenberg uncertainty principle says it is uncertain to find the momentum and position of a particle at the same time. there must be some uncertainty.

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It means decreasing the position value will increase the momentum value while decreasing the momentum value will increase the position value.

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the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach