Question

Reflection and refraction of light notes class10

Answer 1

Explanation:

refraction of light : the change in the direction of propagation of light as it passes obliquely from one transparent medium to another is called refraction occurs as the velocity of light is diffe

rent in different media

Answer 2

Reflection is bouncing back of light and Refraction is passing of light from different media

Explanation:

Reflection of light :-

• When a ray of light strikes at any reflecting surface in bounce back from the surface this phenomenon is known as reflection of light

• It follows two laws :

1. Angle of incidence is equal to the angle of reflection
2. Incident ray, reflected ray and the normal lies in the same plane

Refraction of light :-

• When a ray of light enters from one medium and strikes at the surface which separate the media the moves through another medium with a deviation. If it moves from denser to rarer medium the it bends away from the normal and if it moves from rarer to denser medium then it bends toward the normal
• It also follows two laws :-

1. Ratio of Sine of angle of incidence to the sine of angle of refraction is given by a constant which is equal to the refractive index of medium
2. Incident ray, refracted ray and normal lies in the same plane

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