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प्रश्न
When a ray of light travelling in glass enters into water obliquely ______.
पर्याय
it is refracted towards the normal
it is not refracted at all
it goes along the normal
it is refracted away from the normal
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उत्तर
When a ray of light travelling in glass enters into water obliquely it is refracted away from the normal.
Explanation:
If a ray of light goes from a denser medium (glass) to a rarer medium (water), it bends away from the normal.
संबंधित प्रश्न
What is refraction of light?
If a ray of light goes from a rarer medium to a denser medium, will it bend towards the normal or away from it?
If a ray of light goes form a denser medium to a rarer medium, will it bend towards the normal or away from the normal?
- With the help of a diagram, show how when light falls obliquely on the side of a rectangular glass slab, the emergent ray is parallel to the incident ray.
- Show the lateral displacement of the ray on the diagram.
Light travels at a lower speed in water than in air.
Water is optically .......... than air.
When a ray of light travels from air to glass, it bends .......... the normal.
List four characteristics of the image formed by a concave lens of focal length 20 cm when the object is placed at a distance of 40 cm from its optical centre.
The ratio of the sine of the angle of incidence to the sine of ______ is constant.
A star appears twinkling into the sky because of the reflection of light by the atmosphere.
