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Q.

A microscope using suitable photons is employed to locate an electron in an atom within a distance of 0.1A0. What is the uncertaintiy involved in the measurement of its velocity?

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a

5.79 × 1016 ms-1

b

5.79  ms-1

c

0.79 × 106 ms-1

d

5.79 × 106 ms-1

answer is C.

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Detailed Solution

From Heisenberg's Uncertainity principle 
∆x .m.∆v ≥h4π

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