Total internal reflection can take only ...

Total internal reflection can take only if

light goes from optically rarer medium (smaller refractive index) to opticaly denser medium

light goes from opticaly denser medium to rarer medium

the refractive indices of the two media are close to each other

the refractie indices of the two media are widely different

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HC VERMA-GEOMETRICAL OPTICS-Objective 1

A point source of light is placed in front of a plane mirror.
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Total internal reflection can take only if
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In image formatiion from spherical mirrors, only paraxial rays are con...
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A point object is placed at distance of 30 cm in front of a convex mi...
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Figure shows two rays A and B beig reflected by a mirror and going as ...
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The image formed by a concave mirror
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Figure shows figure three transparent medi of refractive indices mu1, ...
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Four modifications are suggested in the lens formula to incude the eff...
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A double convex lens has two surfaces of equal radii R and refractive ...
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A point source of light is placed at a distance of 2f from a convergin...
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A parallel beam of light is incident on a converging lens parallel to ...
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A symmetric doule convex lens is cut in two equal parts by a plane per...
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A symmetric doule convex lens is cut in two equal parts by a plane per...
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Two concave lenses L1 and L2 are kept in contact with each other. If t...
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A thin lens is made with as material having refractive index mu=1.5. b...
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A convex lens is made of a material having refractive index 1.2. Both ...
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A point object O is placed on the principal axis of a convex lens of f...
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The rays of different colours fail to converge at a point after going ...
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