A mirror has a hole cut in it so that a light can shine through. Opposite the mirror is another mirror, which is parallel to the first. The light ray hits the second mirror with angle ?1, is reflected at an angle ?2 , and then is incident on the first mirror at angle ?3. At what angle to the normal, ?3, in terms of ?1, will the reflected ray then impact the first mirror?
1. ?/2 – ?1
2. ?1
3. ?/2 + ?1
4. –?1
2
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Indicate whether the statement is true or false
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