Question

Arrange the given material mediums in increasing order of speed of light through them. Given Refractive Indices:

• A = 1.50
• B = 1.46
• C = 1.31
• D = 1.77

Hint:

Higher refractive index → Slower light speed.

Answer 1

Concept: Speed of light in a medium is inversely proportional to refractive index. Higher refractive index → Lower speed of light. Arrangement: Highest refractive index to lowest (for increasing speed): D (1.77) <A (1.50) < B (1.46) < C (1.31) Answer: D $\rightarrow$ A $\rightarrow$ B $\rightarrow$ C