At minimum deviation δmin=2i−A
δmin=2(45)−60
δmin=30o
Refractive index of material is
μ=sin(2A)sin(2δmin+A)=sin(30o)sin(230+60)
μ=sin30osin45o=2121=2
The angle of incidence for a ray of light at a refracting surface of a prism is 45^o. The angle of prism is 60^o. If the ray suffers minimum…
NEET UG 2016 — Physics Optics
2016mcqmedium
The angle of incidence for a ray of light at a refracting surface of a prism is 45o. The angle of prism is 60o. If the ray suffers minimum deviation through the prism, the angle of minimum deviation and refractive index of the material of the prism respectively, are:
Official previous-year question
Held on 30 Apr 2016 · Verified 9 Jul 2026.
Options
- A
45o;21
- B
30o;2
- C
45o;2
- D
30o;21
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