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प्रश्न
What is meant by ‘refraction of light’?
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उत्तर
The change in direction of light when it passes from one medium to another obliquely is called refraction of light.
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संबंधित प्रश्न
Which property of light makes a pencil cast a shadow when it is held in front of a light source?
Fill in the following blank with a suitable word:
When light is reflected, the angles of incidence and reflection are ............ .
Write the word AMBULANCE as it would appear when reflected in a plane mirror. Why is it sometimes written in this way (as its mirror image) on the front of an ambulance?
State and explain the laws of reflection of light at a plane surface (like a plane mirror), With the help of a labelled ray-diagram. Mark the angles of 'incidence' and 'reflection' clearly on the diagram. If the angle of reflection is 47.5°, what will be the angle of incidence?
Explain how to read the following message which was found on some blotting paper:
If a ray of light goes from a rarer medium to a denser medium, will it bend towards the normal or away from it?
Light travelling from a denser medium to a rarer medium along a normal to the boundary:
(a) is refracted towards the normal
(b) is refracted away from the normal
(c) goes along the boundary
(d) is not refracted
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Right or wrong sentence.
The incident rays and refracted rays are on opposite sides of the column.
Write scientific reason.
A pencil appears to be broken near the surface of water.
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.
Which surface will not reflect most of the light falling on them?
The bending of light as it passes from one medium to another is called ______.
Mirage is an example of refraction and the total internal reflection of light.
Which is optically denser out of the two medium M1& M2 having the refractive indices = 1.71 and 1.36 respectively?
Why a pencil partly immersed in water appears to be bent at the water surface.
In refraction of light through a glass slab, the directions of the incident ray and the refracted ray are ______.
A ray of light starting from diamond is incident on the interface separating diamond and water. Draw a labelled ray diagram to show. the refraction of light in this case.
In the formula for absolute refractive index \[n = \frac{c}{v}\], the quantity c represents:
A medium with a higher refractive index is:
