trishanaregmi trishanaregmi

13-03-2021
Physics

contestada

Define the refraction index of a
medium..
whatt do you mean by the
that the critical angle
glass is 42°

Respuesta :

john4184 john4184

15-03-2021

Answer:

see below

Explanation:

refractive index of a medium is defined as the ratio of the speed of light in vacuum to the speed of light in medium

critical angle of glass is 42 means that if the angle of incidence inside the glass is 42 degrees, then the angle of refraction in the optically less dense medium will be 90 degrees

hope this helps

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