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JEE Main Chemistry question

ChemistryStructure of AtomJEE Main

The positions of both, an electron and a helium atom is known within 1.0 nm. Further the momentum of the electron is known within . The minimum uncertainty in the measurement of the momentum of the helium atom is [AIPMT 1998]

Answer: (D)

Solution

By Heisenberg's uncertainty principle, , a relation that depends only on the uncertainty in position, not on the particle's mass. Since $Δ

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Question ID VK-132990