Question

Which of the following is true about light with a single wavelength when it enters from one transparent medium to other? I) It can be refracted II) It cannot be dispersed III) It can be reflected

Answer 1

It can be refracted

Explanation:

When a single wavelength wave which is known as a monochromatic light is passed from one transparent medium to the other, it can refract.

This refraction can only be seen if the light enter the medium at some angle. Which means that if the light enters a medium perpendicular or at the angle of 90 degree, it will pass straight without any bending.

Answer 2

The true statements about light with a single wavelength when it enters from one transparent medium to other are:

(I) It can be refracted

(II) It cannot be dispersed

- Monochromatic light of a single wavelength can undergo refraction if and only if the two mediums have different optical densities.

- We know the dispersion of white light as the splitting of it into its different wavelengths.

- So, a monochromatic light cannot undergo dispersion as it contains only one wavelength of light.

- It can only undergo deviation upon passing through a prism.