1.

What is the number of images of an object held between two parallel plane mirrors ?

Answer»

TWO
one
infinite
Cannot be determined.

Solution :When two mirror are placed PARALLEL to each other the image of an object formed by one mirror ACTS, LIKE virtual object for another mirror, and its virtual image acts, like virtual object for previous one and this process CONTINUES and an infinite number of imageare formed by the two mirrors.
(or) `n=(360)/(theta)-1`
`theta=0`
`impliesn=(360)/(0)-1`
`n=oo-1=oo="infinite"`


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