If a ray of incident perpendicular to a reflecting surface, then *A.

1.	If a ray of incident perpendicular to a reflecting surface, then *A. I =0°,r = 90°B.. I =90°,r = 90°C. I =0°,r = 0°D. I =90°,r = 0°
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If a ray of incident perpendicular to a reflecting surface, then *A. I =0°,r = 90°B.. I =90°,r = 90°C. I =0°,r = 0°D. I =90°,r = 0°

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B. is the answer

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If a ray of incident perpendicular to a reflecting surface, then *A. I =0°,r = 90°B.. I =90°,r = 90°C. I =0°,r = 0°D. I =90°,r = 0°​

B. is the answer

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If a ray of incident perpendicular to a reflecting surface, then *A. I =0°,r = 90°B.. I =90°,r = 90°C. I =0°,r = 0°D. I =90°,r = 0°