NEET UG PHYSICS MCQ: RAY OPTICS

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Analyzing +4 | -1

Assertion: If the angles of the base of the prism are equal, then in the position of minimum deviation, the refracted ray will pass parallel to the base of prism.

Reason: In the case of minimum deviation, the angle of incidence is equal to the angle of emergence.

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Correct option: A

If both assertion and reason are true and the reason is the correct explanation of the assertion

The correct answer is A. Both the assertion and the reason are true, and the reason correctly explains the assertion. Minimum deviation occurs when the angle of incidence equals the angle of emergence, leading to the refracted ray being parallel to the base for an isosceles prism.

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