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Optics

Sashank

23/11/2018 0 0

What is light?

And: Light is an energy, which gives us sensation to vision.

What is the reflection?

When a ray of light falls upon a plain surface it gets bounced back from its surface is called reflection.

What is refraction?

Due to change in velocity of light, it gets deviated from its direction is called refraction.

What is the first law of reflection?

The angle of incidence is always equal to the angle of reflection.

What is the second law of reflection?

The incident ray, the reflected ray and the normal at the point of incidence all lie in the same plane.

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