Question

Write the laws of refraction.` (2) Explain refraction through glass slab.`​

Answer 1

Answer:

i) Lateral shift is directly proportional to the thickness of glass slab. (ii) Lateral shift is directly proportional to the incident angle. (iii) Lateral shift is directly proportional to the refractive index of glass slab. (iv) Lateral shift is inversely proportional to the wavelength of incident light.

Answer 2

Answer:

The laws of Refraction

♥ The incident ray ,reflected ray and the normal all lie in the same plane.

♥ The ratio of the sine of the angle of incidence and sine of the angle of refraction is constant.

Refraction through glass slab:

When light rays travelling through air enters glass slab,they get refracted and bend towards normal,since the ray of light I know travelling to denser medium to rarer medium,it bends away from normal.In this case incident ray and the emergent ray are parallel to each other.⚡⚡

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