NEET UG PHYSICS MCQ: RAY OPTICS

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Analyzing +4 | -1

Assertion: The refractive index of a prism depends only on the kind of glass of which it is made of and the colour of light.

Reason: The refractive index of a prism depends upon the refracting angle of the prism and the angle of minimum deviation

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Correct option: C

If assertion is true but reason is false.

Option C is correct. The assertion is true because refractive index depends on the material and wavelength, but the reason is false as refractive index doesn't directly depend on the prism's refracting angle or minimum deviation angle.

More Questions from RAY OPTICS

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An object 5 cm tall is placed

\mathrm{1}\,\,\mathrm{m}

from a concave spherical mirror which has a radius of curvature of

\mathrm{20}\,\,\,\mathrm{cm}

. The size of the image is Red colour is used for danger signals because A ray of light is incident on the hypotenuse of a right-angled prism after travelling parallel to the base inside the prism. If

\mathrm{\mu }

is the refractive index of the material of the prism, the maximum value of the base angle for which light is totally reflected from the hypotenuse is Statement-A: The minimum distance between an object and its real image formed by a convex lens is

2{f}

.

Statement-B: The distance between an object and its real image is minimum when its magnification is -1. Assertion: We cannot produce a real image by plane or convex mirrors under any circumstances.
Reason: The focal length of a convex mirror is always taken negative. If both the object and image are at infinite distance from a refracting telescope its magnifying power will be equal to