JAMB Physics 2021 Objective — Question 21
Question 21 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2021 Objective paper, with the correct answer and a full explanation.
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Mirror rotated through 40° with incident angle 30°. Angle through which reflected ray rotates:
- A. 70°
- B. 10°
- C. 40°
- D. 80°Correct
Explanation
Rotating mirror by θ rotates reflected ray by 2θ=80°.
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