NEET UG 2017 · Physics · Question 44
NEET 2017 Physics, question 44
Question 44 of the NEET 2017 paper (code A) is a Physics question from Ray Optics and Optical Instruments. Its idea, Thin Prisms and Dispersion, was asked twice, in 2017 and 2020, across NEET 2017–2026. The CBSE official answer key gives option 2.
Updated 2026-10-08
Q44 · Physics
A thin prism having refracting angle 10° is made of glass of refractive index 1.42. This prism is combined with another thin prism of glass of refractive index 1.7. This combination produces dispersion without deviation. The refracting angle of second prism should be :
- 14°
- 26°Official answer
- 38°
- 410°
Official answer: option 2 · CBSE official answer key
Same idea
Thin Prisms and Dispersion, in other papers
NEET asked this idea twice, in 2017 and 2020. The other question below.
- 2020 Q140A ray is incident at an angle of incidence on one surface of a small angle prism (with angle of prism A) and emerges normally from the…Numerical · Medium
Thin Prisms and Dispersion: every question and how it was framed
The chapter
Ray Optics and Optical Instruments in ten years of NEET
26 questions from 2017–2026, asked in 10 of 10 papers, about 2.5 a paper. Prisms, Dispersion and Optical Instruments alone had 8.