In the diagram above, an incident ray AY makes an angle of 30o with the normal XY. If the mirror is rotated anticlockwise about Y through an angle of 20o, while AY is fixed, what angle will the reflected ray now make with the incident ray?

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In the diagram above, an incident ray AY makes an angle of 30o with the normal XY. If ...

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In the diagram above, an incident ray AY makes an angle of 30^o with the normal XY. If the mirror is rotated anticlockwise about Y through an angle of 20^o, while AY is fixed, what angle will the reflected ray now make with the incident ray?

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A 70^o
B 80^o
C 100^o
D 120^o

Correct Answer: Option C

Explanation:

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In the diagram above, an incident ray AY makes an angle of 30o with the normal XY. If ...

Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE

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