A concave lens of glass, refractive inde...

A concave lens of glass, refractive index 1.5 ,has both surfaces of the same radius of curvature R. On immersion in a medium of refractive index 1.75, it will behave as

convergent lens of focal length 3.05R.

convergent lens of focal length 3.0 R

divergent lens of focal length 3.5 R.

divergent lens of focal length 3.0R.

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MODERN PUBLICATION-UNIT TEST -06-EXERCISE

A point object is placed at a distance of 20 cmA point object is place...
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A biconvex lens of focal length 15 cm is in front of a plane mirror.Th...
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A concave lens of glass, refractive index 1.5 ,has both surfaces of th...
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A double convex lens made from a material of refractive index mu1 is i...
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A convex lens is in contact with concave lens .The magnitude of the ra...
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A hollow doublew concave lens is made of very thin transparent materia...
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A biconvex of focal length forms a circular image of radius r of sun ...
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A real image of a distant object is formed by a plano-convex lens on i...
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A ray of light passes through an equilateral glass prism,such that ang...
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A ray of light is incident on an equilateral glass prism placed on a h...
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A given ray of light suffers minimum deviation in an equilateral prism...
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A thin prism of angle 15^@ made of glass of refractive index = 1.5 is...
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White ligth is incident on the interface of glass and air as shown in ...
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A beam of light consisting of red, green and blue and is incident on a...
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Which one of the following spherical lenses does not exhibit dispersio...
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In a compound microscope,the intermediate image is
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The focal length of the objective of a microscope is
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When the length of a microscope tube is increased,its magnifying power
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The 'f number' of a given camera is 8.It means that
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The interfernce phenomenon can take place
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