The speed of light in water and glass is 2.2 × 10 8 m/s and 2 × 10 8 m/s, respectively. What is the refractive index of glass with respect to water?

Explained: "The speed of light in water and glass..."

High School
Physics
Light and Optics
Diffraction of light

Marcus Frank

Answered question

2023-01-12

The speed of light in water and glass is

2.2 \times 10^{8}

m/s and

2 \times 10^{8}

m/s, respectively. What is the refractive index of glass with respect to water?

Answer & Explanation

Belinda Bass

Beginner2023-01-13Added 7 answers

Given
Speed of light in water

(v 1) = 2.2 \times 10^{8} m / s

Speed of light in the glass

(v, 2) = 2 \times 10^{8} m / s

Formula used
Refractive index is the ratio of the velocity of light in vacuum (c) to the velocity in a specific medium (v).

n = \frac{c}{v}

…………(1)
Calculating the glass's water-refractive index
Using equation (1)

n = \frac{v}{1}

n = \frac{2.2 \times 10^{8}}{2 \times 10^{8}} n = 1.1

n = 1.1.

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