Question 209: Ray Optics

Question

To get three images of a single object, one should have two plane mirrors at an angle of

Accepted Answer

When $	heta  = {90^ \circ }$ then ${{360} \over 	heta } = {{360} \over {90}} = 4$
is an even number. The number of images formed is given by
$n = {{360} \over 	heta } - 1 = {{360} \over {90}} - 1 = 4 - 1 = 3$

Answer

${60^ \circ }$

Answer

${90^ \circ }$

Answer

${120^ \circ }$

Answer

${30^ \circ }$

Ray Optics

To get three images of a single object, one should have two plane mirrors at an angle of

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