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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
| Column I | Column II | Column III | |
| 1 | Dispersion | Long-sightedness | Twinkling of stars |
| 2 | Refraction | Splitting of white light into component colours | Convex lens |
| 3 | Hypermetropia | Change in the direction of the ray of light due to change in medium | Spectrum of seven colours |
Where is the image when you look at something in a mirror?
What is lateral inversion? Explain by giving a suitable example.
Explain why, though both a plane mirror and a sheet of paper reflect light but we can see the image of our face in a plane mirror but not in a sheet of paper.
An object is placed 20 cm in front of a plane mirror. The mirror is moved 2 cm towards the object. The distance between the positions of the positions of the original and final images seen in the mirror is ______.
A ray of light goes from water into air. Will it bend towards the normal or away from the normal?
A ray of light passes from air into a block of glass. Does it bend towards the normal or away from it?
As light rays pass from water into glass, are they refracted towards the normal or away from the normal?
Which phenomenon of light makes the water to appear shallower than it really is?
State whether the following statement is true or false:
Refraction occurs because light slows down in denser materials.
Why does a ray of light bend when it travels from one medium to another?
What is meant by ‘refraction of light’?
- 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.
State two factors on which the lateral displacement of the emergent ray depends.
When a ray of light travels from water to air, it bends ............. the normal.
Fill in the blank and Explain the completed sentences.
The change in ______ of light rays while going from one medium to another is called refraction.
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 phenomenon of change in the direction of light when it passes from one transparent medium to another is called ___________.
The laws of reflection hold true for ______.
Write scientific reason.
The sun appears on the western horizon for some time after sunset.
You are given water, mustard oil, glycerine and kerosene. In which of these media a ray of light incident obliquely at same angle would bend the most?
The deviation of light ray from its path when it travels from one transparent medium to another transparent medium is called ______.
Which object use the reflection of light?
When light passes from one medium to another the ray gets bent. This property of light is called ______.
A star appears twinkling into the sky because of the reflection of light by the atmosphere.
When light travels from a denser medium to a rarer medium, its speed:
According to the first law of refraction, the incident ray, the refracted ray, and the normal at the point of incidence:
The absolute refractive index of a medium is given by:
