Search SchoolNGR

Sunday, 01 March 2026
Register . Login

The refractive index of the medium M in the diagram above is



The refractive index of the medium M in the diagram above is
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A 1/√3
  • B 2√3
  • C √3
  • D 2/√3
Correct Answer: Option C
Explanation:

From the above diagram ; ? = 90o - 30o = 60o
v = 90 - 60 = 30
∴ refractive index = (sin ?)/(sin v) = (sin 60o / sin 30o) = √3/2/1/2
= √3/2 x 1/2
= √3

Share question on: