Question

Q.7. White light consists of wavelengths from 400 nm to 700 nm. What will be the wavelength range seen when white light is passed through glass of refractive index 1.55. ​

Answer 1

Answer:

258.06 - 451.61 this is the answer for this question

Answer 2

Answer: The wavelength range when white light is passed through the glass is 258.06 nm to 451.61 nm

Explanation:

Given : Refractive index (n) = 1.55

Smallest range of wavelength = 400 nm

Largest range of wavelength = 700 nm

What to find : Range of wavelength of light when passed through the glass

Formula Used : λ= λо/ Refractive index (n)

Here λо is the wavelength of light in vacum

Calculations : For smallest range : λ = 400 / 1.55

λ = 2.5806 × 10^2 nm or 258.06 nm

For largest range : λ = 700 / 1.55

λ = 4.5161 × 10^2 nm or 451.61 nm

Wavelength range in glass : 258.06 nm to 451.61 nm