Light of wavelength 600 nm in air enters in the water of refractive index 4 3 . Find speed. The velocity of light in air is 3 x 10 8 m s - 1 .

Given that, The wavelength of the light, λ = 600 nm Refractive index of water, n = 4 3 The velocity of light in air = 3 × 10 8 m s - 1 We know that, n = Velocity of light in air Velocity of light in medium That is, Velocity of light in medium = Velocity of light in air n = 3 × 10 8 m s - 1 4 3 = 2 . 25 × 10 8 m s - 1

A light of wavelength 600 nm in air enters in water of refractive index 4 3 . Find frequency. The velocity of light in air is 3 x 10 8 m s - 1 .

Given that, The wavelength of the light, λ = 600 nm Refractive index of water, n = 4 3 The velocity of light in air , c = 3 × 10 8 m s - 1 We know that, c = ν λ , where ν is the frequency of the wave. That is, ν = c λ = 3 × 10 8 m s - 1 600 nm = 5 × 10 14 Hz

A light of wavelength 600 nm in air enters in water of refractive index 4 3 . Find wavelength of light in glass. Velocity of light in air is 3 × 10 8 m s - 1 .

Given that, The wavelength of the light, λ = 600 nm Refractive index of water, n = 4 3 The velocity of light in air = 3 × 10 8 m s - 1 We know that, n = Velocity of light in air Velocity of light in medium That is, Velocity of light in medium = Velocity of light in air n = 3 × 10 8 m s - 1 4 3 = 2 . 25 × 10 8 m s - 1 We can use the formula, Velocity of light in air Velocity of light in medium = Wavelength of light in air Wavelength of light in medium to find out the wavelength. That is, Wavelength of light in medium = Wavelength of light in air × Velocity of light in medium Velocity of light in air Wavelength of light in medium = 600 nm × 2 . 25 × 10 8 m s - 1 3 × 10 8 m s - 1 = 450 nm

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Core Science Physics>Chapter 1 - Light - Reflection and Refraction>Practice Problems : 3

V.K. Sally Solutions for Chapter: Light - Reflection and Refraction, Exercise 8: Practice Problems : 3

Author:V.K. Sally

V.K. Sally Physics Solutions for Exercise - V.K. Sally Solutions for Chapter: Light - Reflection and Refraction, Exercise 8: Practice Problems : 3

Attempt the practice questions on Chapter 1: Light - Reflection and Refraction, Exercise 8: Practice Problems : 3 with hints and solutions to strengthen your understanding. Core Science Physics solutions are prepared by Experienced Embibe Experts.

Questions from V.K. Sally Solutions for Chapter: Light - Reflection and Refraction, Exercise 8: Practice Problems : 3 with Hints & Solutions

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>Practice Problems : 3>Q 1

Light of wavelength $600 nm$ in air enters in the water of refractive index $\frac{4}{3}$ . Find speed. The velocity of light in air is $3 x 10^{8} m s^{- 1}$ .

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>Practice Problems : 3>Q 1

A light of wavelength $600 nm$ in air enters in water of refractive index $\frac{4}{3}$ . Find frequency. The velocity of light in air is $3 x 10^{8} m s^{- 1}$ .

HARD

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>Practice Problems : 3>Q 1

A light of wavelength $600 nm$ in air enters in water of refractive index $\frac{4}{3}$ . Find wavelength of light in glass. Velocity of light in air is $3 \times 10^{8} m s^{- 1}$ .

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>Practice Problems : 3>Q 2

Calculate speed of light in diamond for a ray of light of wavelength $800 nm$ in air, when refractive index of diamond is $2.42$ . Speed of light in air is $3 \times 10^{8} m s^{- 1}$ .

HARD

10th CBSE

IMPORTANT

Core Science Physics>Chapter 1 - Light - Reflection and Refraction>Practice Problems : 3>Q 2

Calculate the wavelength of light in diamond for a ray of light of wavelength $800 nm$ in air, when refractive index of diamond is $2.42$ . Speed of light in air is $3 \times 10^{8} m / s$ .

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