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Question
Q492) the position of both, electron and helium atom is known with in 0.1nm. Further the momentum of electron is known with in 5.0×10-26 kg ms-1The minimum uncertainty in the measurement of momentum of helium atom is



SOLUTION

Δxe Δpe=ΔxHe ΔpHe
As Δxe=ΔxHe
Δpe=ΔpHe
Answer: (b)