JAMB Physics 2019 Objective — Question 26

Question 26 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2019 Objective paper, with the correct answer and a full explanation.

When a plane mirror with a ray of light incident on it is rotated through angle θ, the reflected ray will be rotated through

• A. θ/2
• B. θ
• C. 2θCorrect
• D. 3θ

Explanation

When a plane mirror is rotated through an angle (with the incident ray fixed), the reflected ray rotates through twice that angle.

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