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प्रश्न
Where is the image when you look at something in a mirror?
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उत्तर
When we look at something in a mirror, the image formed is behind it.
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संबंधित प्रश्न
The image in a plane mirror is virtual and laterally inverted. What does this statement mean?
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 sits in an optician's chair looking into plane mirror which is 2 m away from him and views the image of a chart which faces the mirror and is 50 cm behind his head. How far away from his eyes does the chart appear to be?
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 ______.
If a ray of light goes from a rarer medium to a denser medium, will it bend towards the normal or away from it?
A ray of light travelling in glass emerges into air. State whether it will bend towards the normal or away from the normal.
A ray of light goes from water into air. Will it bend towards the normal or away from the normal?
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.
A vertical ray of light strikes the horizontal surface of some water:
- What is the angle of incidence?
- What is the angle of refraction?
A ray of light when passes from glass to air, bends towards the normal.
Light travels at a lower speed in water than in air.
Draw a diagram showing the refraction of a light ray from water to glass. Label on it the incident ray, the angle of incidence (/), and the angle of refraction (r)
The phenomenon of change in the direction of light when it passes from one transparent medium to another is called ___________.
Which object use the reflection of light?
How does the light travel?
The part of light that enters into the other medium and travels in a straight path but in a direction different from its initial direction is called:
When light travels from a rarer medium to a denser medium, its speed:
The constant \[\frac{\sin i}{\sin r}\] for a given pair of media is called the:
