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Question
What is meant by 'refraction of light'? Draw a labelled ray diagram to show the refraction of light.
Solution
Refraction of light:
The change in direction of light when it passes from one medium to another obliquely is called refraction of light.
Here, the light ray changes its direction or refracts at point A when it travels from air to glass. The ray changes its direction again at point B when it travels from glass to air.
RELATED QUESTIONS
What is refraction of light?
| Column I | Column II | Column III | |
| 1 | Dispersion | Long-sightedness | Twinkling of stars |
| 2 | Refraction | Splitting of white light into component colours | Convex lens |
| 3 | Hypermetropia | Change in the direction of the ray of light due to change in medium | Spectrum of seven colours |
Where is the image when you look at something in a mirror?
What are the important differences between looking at a photograph of your face and looking at yourself in a plane mirror?
Which type of reflection of light leads to the formation of images?
A ray of light strikes a plane mirror PQ at an angle of incidence of 30°, is reflected from the plane mirror and then strikes a second plane mirror QR placed at right angles to the first mirror. The angle of reflection at the second mirror is ______.
Fill in the following blank with suitable word:
Light travelling along a normal is ...............refracted.
Fill in the blank and Explain the completed sentences.
The change in ______ of light rays while going from one medium to another is called refraction.
What is refractive index?
Which surface will not reflect most of the light falling on them?
