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प्रश्न
As light rays pass from water into glass, are they refracted towards the normal or away from the normal?
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उत्तर
Glass is denser than water; therefore, if light rays pass from water into glass, the rays will be refracted towards the normal.
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संबंधित प्रश्न
What are the important differences between looking at a photograph of your face and looking at yourself in a plane mirror?
State the uses of plane mirrors.
The image of an object formed by a plane mirror is:
(a) virtual
(b) real
(c) diminished
(d) upside-down
The image formed by a plane mirror is :
(a) virtual, behind the mirror and enlarged.
(b) virtual, behind the mirror and of the same size as the object.
(c) real, at the surface of the mirror and enlarged.
(d) real, behind the mirror and of the same size as the object.
A man stands 10 m in front of a large plane mirror. How far must the walk before he is 5 m away from his image?
What is meant by 'refraction of light'? Draw a labelled ray diagram to show the refraction of light.
Show the lateral displacement of the ray on the diagram.
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
Water is optically .......... than air.
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.
Choose and write the correct option.
If we gradually increase the angle of incidence of a ray of light passing through prism then …..
The phenomenon of change in the direction of light when it passes from one transparent medium to another is called ___________.
Due to _______ pencil looks bent in water, in the given experiment.
Assertion and reasoning type
- Assertion: If the refractive index of the medium is high (denser medium) the velocity of the light in that medium will be small
- Reason: Refractive index of the medium is inversely proportional to the velocity of the light
The deviation of light ray from its path when it travels from one transparent medium to another transparent medium is called ______.
Light travels fastest in a vacuum. Why?
The ratio of the sine of the angle of incidence to the sine of ______ is constant.
Light is refracted or bent while going from one medium to another because of its ______ changes.
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