Question

there are two laws of reflection. true/false​

Answer 1

Answer:

true

Explanation:

There are two laws of reflection.

The first law of refraction: The incident ray, the refracted ray and the normal to the interface of two transparent media at the point of incidence, all lie in the same plane.

Second law of refraction: The ratio of the sine of angle of incidence to the sine of angle of refraction is a constant for a given pair of medium and for a given wavelength of light. This law is also known as Snell’s law.

The constant is called the refractive index of second medium with respect to the first medium.

The cause of refraction is the change in the speed of light as it goes from one medium to another medium. Larger the difference in speeds of light, the greater will be the angle of bending and vice-versa.

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Answer 2

Answer:

The given statement is true.

Learn More:-

There are two laws of refraction :-

➨ The incident (i), reflected ray (r) and normal ray (n) of the two transparent medium at the point of incidence lies in the same plane.

➨ The angle of refraction is equal to the angle of incidence. This law is known as snell's law of refraction.

• ∠Incidence = ∠Refraction (∠i = ∠r).