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प्रश्न
When a ray of light travels from water to air, it bends ............. the normal.
उत्तर
When a ray of light travels from water to air, it bends away from the normal.
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संबंधित प्रश्न
What is refraction of light?
What type of reflection of light takes place from a cinema screen?
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 ______.
State whether the following statement is true or false:
Refraction occurs because light slows down in denser materials.
A ray of light passes from a medium X to another medium Y. No refraction of light occurs if the ray of light hits the boundary of medium Y at an angle of:
(a) 0°
(b) 45°
(c) 90°
(d) 120°
What is atmospheric reflection? Explain with the help of a labelled diagram that the position of a star as seen by us is not its true position.
The incident rays and refracting rays are on opposite sides of the normal.
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.
Twinkling of stars and Mirage are the two phenomena occurring due to refraction.
Why a pencil partly immersed in water appears to be bent at the water surface.
