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प्रश्न
Explain with diagrams how refraction of incident light takes place from
- rarer to denser medium
- denser to rarer medium
- normal to the surface separating the two media.
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उत्तर
a) rarer to denser medium:
When a ray of light travels from optically rarer medium to optically denser medium, it bends towards the normal.
b) denser to rarer medium:
When a ray of light travels from an optically denser medium to an optically rarer medium it bends away from the normal.
c) normal to the surface separating the two media:
A ray of light incident normally on a denser medium, goes without any deviation.
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संबंधित प्रश्न
Where is the image when you look at something in a mirror?
Define the following terms used in the study of reflection of light by drawing a labelled ray-diagram:
- Incident ray
- Point of incidence
- Normal
- Reflected ray
- Angle of incidence
- Angle of reflection
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Draw suitable diagrams to illustrate how a beam of light incident parallel to the principal axis is reflected by:
(a) a concave mirror, and (b) a convex mirror
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Write scientific reason.
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Which surface will not reflect most of the light falling on them?
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Twinkling of stars and Mirage are the two phenomena occurring due to refraction.
