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Physics-

General

Easy

Question

A curved surface of radius $R$ separates two medium of refractive indices $m subscript 1 end subscript$ and $m subscript 2 end subscript$ as shown in figures A and B

Identify the correct statement (s) related to the formation of images of a real object placed at x from the pole of the concave surface, as shown in figure B

If $μ_{2} > μ_{1}$ , then virtual image is formed for any value of y
If $μ_{2} < μ_{1}$ , then virtual image is formed if $x < \frac{μ_{1} R}{μ_{1} - μ_{2}}$
If $μ_{2} < μ_{1}$ , then real image is formed for any value of x
none of these

The correct answer is: If $mu subscript 2 end subscript less than mu subscript 1 end subscript$ , then virtual image is formed if $x less than fraction numerator mu subscript 1 end subscript R over denominator mu subscript 1 end subscript minus mu subscript 2 end subscript end fraction$

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Three right angled prisms of refractive indices $n subscript 1 end subscript comma n subscript 2 end subscript$ and $n subscript 3 end subscript$ are fixed together using an optical glue as shown in figure. If a ray passes through the prisms without suffering any deviation, then

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A point source S is placed midway between two converging mirrors having equal focal length as shown in figure. Find the values of d for which only one image is formed.

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