The critical angle for a ray travelling from an unknown medium to vacuum is 30°. Then refractive index of that unknown medium is
(A) 1.5
(B) 2
(C) 2.5
(D) 1
Answers
Answered by
2
1.....
Hope it helps u
Hope it helps u
Similar questions
Hindi,
4 months ago
Computer Science,
9 months ago
Accountancy,
9 months ago
World Languages,
1 year ago