Question

state the law of refraction of light. if the speed of light in vacuum is 3×10^8 m/s. find the absolute refractive index of a medium in which light travels with a speed of 1.4×10^8 m/s.​

Answer 1

Answer:

Laws of refraction of light:

First law : The incident ray, the refracted ray, and the normal at the point of incidence all line in the same plane.

Second law (Sell's law): The ratio of sine of angle of incidence to the sine of angle of refraction is a constant for a given pair of media.

i.e,. sinrsini=Constant

Speed of light in vacuum, c=3×108 m/s

Speed of light in medium, v=1.4×108 m/s

Absolute refractive index = Speed of light in mediumSpeed of light in vacuum

=1.4×108m/s3×108m/s=2.14

Explanation:

hope it helps you

Answer 2

Answer:

Here Is Your Answer Mate ↩️↩️

Laws of Refraction of Light:

1-The Incident Ray,the refracted Ray and the normal at the point of incidence,all lie in the same plane.

2-The ratio of the sine of the angle of incidence i to the sine of the angle of refraction r is constant for the pair of given media. i.e., mathematically

Sin I/Sin r=constant 1μ2

Hope this helps u mate ✔️✌

Explanation: