WAEC Physics 2023 Objective — Question 44

Question 44 of 50 from the West African Examinations Council (WAEC) Physics 2023 Objective paper, with the correct answer and a full explanation.

When an electron jumps directly from an orbit of n=4 to n=2,

A. a photon is absorbed
B. a photon is emittedCorrect
C. two photons are emitted
D. two photons are absorbed

Explanation

When an electron jumps directly from a higher energy level (n=4) to a lower energy level (n=2), it undergoes a transition accompanied by the emission of a photon with energy equal to the difference between the two orbits.

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