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PhysicsModern PhysicsAtomic structureMedium2 minQB

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When a stationary excited hydrogen atom of mass M emits a photon of wavelength $λ$ , the recoil velocity of the atom is

Answer:

Solution:

Recoil momentum = photon momentum $= h / λ$ , so $v = \frac{h}{M λ}$ .

Subject:PhysicsTopic:Modern PhysicsSubtopic:Atomic structure

⏱ 2mℹ️ Source: QB

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