Question

reflection of light and laws of reflection notes for class 10​

Answer 1

Light incident on another medium

When light travels from one medium to another medium it either:

gets absorbed (absorption)

bounces back (reflection)

passes through or bends (refraction)

When light is incident on a plane mirror, most of it gets reflected, and some of it gets absorbed in the medium.

CBSE Notes Class 10 Science Chapter 10-1

Characteristics of light

Speed of light c=λ×μ, where λ is its wavelength and μ  is its frequency.

Speed of light is a constant which is 2.998×108m/s or approximately 3.0×108m/s.

To know more about Properties of Light, visit here.

Reflection of light by other media

A medium that is polished well without any irregularities on its surface will cause regular reflection of light. For example, a plane mirror. But even then some light gets absorbed by the surface.

Laws of Reflection

The incident ray, reflected ray and the normal all lie in the same plane.  Angle of incidence = Angle of reflection

[∠i=∠r]

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Answer 2

Explanation:

law of reflection

I) angel of incident = angel of reflection

ll) incident ray , normal and reflected ray lie in same plane