If uncertainty in the measurement of position and momentum are equal, then uncertainty in the measurement of velocity is equal to:
12m√2hπ
12m√hπ
14m√hπ
12m√h2π
A
14m√hπ
B
12m√2hπ
C
12m√hπ
D
12m√h2π
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Solution
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If uncertainty in the measurement of position and momentum are equal then uncertainly in the measurement of velocity is equal to 12m√hπ. ΔxΔP=h4π But Δx=ΔP Hence, Δx=ΔP=√h4π But ΔP=mΔu Hence, Δu=12m√hπ
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