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1. A ray reflected from a retro-reflector

A. passes through the focal point
B. forms a right angle with an incedent ray
C. travels in the direction opposite that of the incedent ray
D. has an angle of reflection equal to the angle of incidence​

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Answer:

B.)

Explanation:

A retroreflector (sometimes called a retroflector or cataphote) is a device or surface that reflects radiation (usually light) back to its source with minimum scattering. ... Being directed, the retroflector's reflection is brighter than that of a diffuse reflector.

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