28.
Under what condition in an arrangement of two plane mirrors,
incident ray and reflected ray will always be parallel to each
other, whatever may be the angle of incidence. Show the same
with the help of diagram.
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2
Answer:
when it is on the normal
Explanation:
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0
Answer:
IF THE MIRRORS ARE PLACED AT AN ANGLE OF 45⁰ TO EACH OTHER, THEN NO MATTER WHAT ANGLE OF INCIDENCE, THE RAYS WILL BE PARALLEL TO EACH OTHER.
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