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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