Question

give 3 examples of material that refract light rays.what happens to the speed of light rays when they enter these materials


correct explanation required plzzzz...

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Answer 1

Answer:- Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). This change of direction is caused by a change in speed. For example, when light travels from air into water, it slows down, causing it to continue to travel at a different angle or direction.

Answer 2

There are many examples of materials that refract light rays. Let us see 3 examples that refract are seen in our daily life.

• Water: When light travels through the water the light rays refract and the speed of light rays decreases but when light travels from water to air the speed of the light increases.
• Glass: As the glass is transparent, refraction takes place when the light rays travel through it. The speed of light decreases when light travels from air into the glass because the glass is denser than air.
• Lens: Similarly, refraction takes place when the light rays travel through the lens and the velocity of light rays decreases as the lens material is denser than air.
• In the above cases, the light gets refracted when it travels through the transparent substance with a different refractive index ( optical density ) making an angle from the normal. The change of direction is due to a change in speed.

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