Question

What is the snell law? ( Class 10 | Ch - Light )

Answer 1

Answer :

• Snell's law states that : The ratio of Sine of angle of incidence to the Sine of angle of refraction is a constant, for the light of a given colour and for the given pair of media.

• This is true when the angle given is between 0° to 90°.

• Formula : sin i/sin r = constant.

• 'i' is the angle of incidence and 'r' is the angle of refraction.

• The constant value that we will get is the Refractive Index of the second medium with respect to the first medium.

• So, We can write it as : Refractive Index_21 = n_21 = sin i/sin r.

• Snell's law is one of the law's of refraction of light.

Answer 2

Answer:

Sin i/sin r =constant = n

Explanation:

here i= incidence rays

r= reflected Ray

n= refractive index of the second medium with respect to the first medium also write as 2n1

this is known as Snell's law

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