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प्रश्न
State the uses of plane mirrors.
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उत्तर
Uses of a plane mirror:
- Plane mirrors are used to see ourselves. Example, mirrors in a bathroom.
- Plane mirrors are fixed on the inner walls of certain shops ( like jewellery shops) to make them look bigger.
- Plane mirrors are fitted at blind turns of some busy roads so that drivers can see the vehicles coming from the other side and prevent accidents.
- Plane mirrors are used in periscopes.
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संबंधित प्रश्न
If an object is placed at a distance of 10 cm in from of a plane mirror, how far would it be from its image?
Which property of light makes a pencil cast a shadow when it is held in front of a light source?
Where is the image when you look at something in a mirror?
What are the important differences between looking at a photograph of your face and looking at yourself in a plane mirror?
Write all the capital letters of the alphabet which look the same in a plane mirror.
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?
A ray of light strikes a plane mirror PQ at an angle of incidence of 30°, is reflected from the plane mirror and then strikes a second plane mirror QR placed at right angles to the first mirror. The angle of reflection at the second mirror is ______.
State two effects caused by the refraction of light.
Name the phenomenon due to which a swimming pool appears less deep than it really is.
Why does a ray of light bend when it travels from one medium to another?
What is the cause of refraction of light when it passes from one medium to another?
A ray of light passes from medium 1 to medium 2. Which of the following quantities of the refracted ray will differ from that of the incident ray: Speed, intensity, frequency, wavelength?
Define the principal focus of a concave mirror.
Explain how the formation of a rainbow occurs.
State whether true or false. If false, correct the statement.
The angle of deviation depends on the refractive index of the glass.
A water tank appears shallower when it is viewed from the top due to refraction.
The bottom of swimming pool appears to be less deep than the actual one because of
When a light ray passes from a denser medium to a rarer medium, it bends:
