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Question

If the electron has a speed of 600 m/sec with an accuracy of 0.005%. The certainty with which the position of the electron can be located in:

A
1.96×103
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B
1.058×103
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C
2.69×102
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D
3.58×102
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Solution

The correct option is A 1.96×103
Again, use
Δx=h/4πmΔv.
A/q Δv=0.005/100×600m/s=5×105×600m/s=0.03m/s.

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