Given below are some media. Arrange them in increasing order of their refractive indices.
(A) Crown glass
(B) Dense flint glass
(C) Water
(D) Diamond
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (C), (A), (B), (D)
The refractive index of each medium (for yellow light) is:
\( (C)\ \text{Water: } 1.33 \)
\( (A)\ \text{Crown glass: } 1.52 \)
\( (B)\ \text{Dense flint glass: } 1.62 \)
\( (D)\ \text{Diamond: } 2.42 \)
Increasing order: (C), (A), (B), (D).
NCERT (2026-27):
Total Internal Reflection – …
