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A concave spherical surface of radius of...

A concave spherical surface of radius of curvature `R = 20 cm` separates two media A and B having refractive indices `mu_(A) =(4)/(3)` and `mu_(B) =(3)/(2)`respectively. A point object is placed on the principal axis. Find the distance of the object from the surface so that its image is virtual when
(a) the object is in medium A.
(b) the object is in medium B.

Text Solution

Verified by Experts

The correct Answer is:
(a) For all distance (b) For all distance
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Knowledge Check

  • A concave spherical surface of radius of curvature 10 cm separates two mediums X and Y of refractive indices 4//3 and 3//2 respectively. Centre of curvature of the surfaces lies in the medium X . An object is placed in medium X .

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    C
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  • The diagram shows a spherical surface which separates two media of refractive index, mu_(1) and mu_(2) . Respectively. Now, a point object is placed on the principal axis as shown in the figure. Then

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    C
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    D
    Virtual image will form if `mu_(1) lt mu_(2)`

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