# Refractive Indices of Water, Sulphuric Acid, Glass and Carbon Disulphide Are 1.33, 1.43, 1.53 and 1.63 Respectively. the Light Travels Slowest In: (A) Sulphuric Acid (B) Glass (C) Water (D) Carbon Disulphide - Science

Refractive indices of water, sulphuric acid, glass and carbon disulphide are 1.33, 1.43, 1.53 and 1.63 respectively. the light travels slowest in:

(a) sulphuric acid
(b) glass
(c) water
(d) carbon disulphide

#### Solution

carbon disulphide

Explanation:
Refractive index = "speed of light in air"/"speed of light in medium "

Speed of light in the medium is slowest; therefore refractive index will be maximum as the speed of light in air is constant. Thus, light will travel slowest in the substance with refractive index 1.63.

Concept: Refractive Index
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#### APPEARS IN

Lakhmir Singh Class 10 Physics (Science)
Chapter 5 Refraction of Light
Q 27 | Page 229
Lakhmir Singh Class 10 Physics (Science)
Chapter 5 Refraction of Light
Q 27 | Page 229