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Refraction through a Prism for NEET: 19 solved questions

Real NEET paper questions on refraction through a prism, part of ray optics and optical instruments. Each opens with the options, the correct answer and a step-by-step solution. Papers run from 1992 to 2022. No sign-in needed to read them.

What this topic asks

• Deviation and minimum deviation — 10 questions
• Dispersion and scattering — 9 questions

All 19 questions with solutions

• A horizontal ray of light is incident on the right-angled prism with prism angle 6°. If the refractive index…
• During a cloudy day, a primary and a secondary rainbow may be created, then the: NEET 2022
• Find the value of the angle of emergence from the prism shown in the figure. The refractive index of the glas… NEET 2021
• A ray is incident at an angle of incidence i on one surface of a small angle prism (with angle of prism A) an… NEET 2020; CBSE AIPMT 2012; CBSE AIPMT 1989
• Pick the wrong answer in the context with rainbow. NEET 2019
• Which colour of the light has the longest wavelength? NEET 2019
• The refractive index of the material of a prism is √2 and the angle of the prism is 30°. One of the two refra… NEET 2018; CBSE AIPMT 2004
• A thin prism having refracting angle 10° is made of glass of refractive index 1.42. This prism is combined wi… NEET 2017
• The angle of incidence for a ray of light at a refracting surface of a prism is 45°. The angle of prism is 60… NEET 2016
• The refracting angle of a prism is A, and refractive index of the material of the prism is cot (A/2). The ang… AIPMT 2015
• The angle of a prism is A. One of its refracting surfaces is silvered. Light rays falling at an angle of inci… AIPMT 2014
• Rainbows are formed by CBSE AIPMT 2000
• The refractive index of the material of the prism is √3, then the angle of minimum deviation of the prism is CBSE AIPMT 1999
• If f_V and f_R are the focal lengths of a convex lens for violet and red light respectively and F_V and F_R a… CBSE AIPMT 1996
• An achromatic combination of lenses is formed by joining CBSE AIPMT 1995
• Angle of deviation (δ) by a prism (refractive index =μ, and supposing the angle of prism A to be small) can b… CBSE AIPMT 1994
• There is a prism with refractive index equal to √2 and the refracting angle equal to 30°. One of the refracti… CBSE AIPMT 1992
• The focal lengths of a converging lens measured for violet, green and red colours are f_V, f_G, f_R respectiv… CBSE AIPMT 1997
• Focal length of a convex lens will be maximum for CBSE AIPMT 1994