Gce Model Questions Vol1 2024 Physics Question 24
Practice objective / multiple choice question 24 from the 2024 Gce Model Questions Vol1 Physics examination.
A hydrogen atom makes a transition from the \(n=5\) to the \(n=2\) energy level, emitting a photon. The source of the photon is moving away from an observer at a speed of \(3.0\times10^{5}\ \text{m\ s}^{-1}\). (i) Calculate the wavelength of the photon emitted in the atom's rest frame. (ii) Determine the wavelength observed by the stationary observer, assuming the non‑relativistic Doppler shift approximation.
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This is Gce Model Questions Vol1 2024 Physics Question 24. It is one of the objective questions from the 2024 Gce Model Questions Vol1 Physics examination.
Difficulty level: Hard .
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