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प्रश्न
The refractive index of a transparent medium is always greater than ______.
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उत्तर
The refractive index of a transparent medium is always greater than one.
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संबंधित प्रश्न
Fill in the following blank with a suitable word:
When light is reflected, the angles of incidence and reflection are ............ .
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
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?
Fill in the following blank with suitable word:
Light bends when is passes from water into air. We say that it is ............
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
When a ray of light travelling in glass enters into water obliquely ______.
Choose and write the correct option.
If we gradually increase the angle of incidence of a ray of light passing through prism then …..
Write scientific reason.
The sun appears on the western horizon for some time after sunset.
Write scientific reason.
The bottom of a pond appears raised.
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.
