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प्रश्न
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.
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उत्तर
(b) Virtual, behind the mirror and of the same size as the object
The image formed by a plane mirror is virtual, behind the mirror and of the same size because it cannot be projected on a screen.
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संबंधित प्रश्न
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Write all the capital letters of the alphabet which look the same in a plane mirror.
The angle of reflection is equal to the angle of incidence:
(a) always
(b) sometimes
(c) under special conditions
(d) never
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Fill in the following blank with suitable word:
Light bends when is passes from water into air. We say that it is ............
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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.
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(a) 0°
(b) 45°
(c) 90°
(d) 120°
A ray of light when passes from glass to air, bends towards the normal.
The speed of light is more in glass than in water.
When a ray of light travels from water to air, it bends ............. the normal.
Choose and write the correct option.
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Explain with diagrams how refraction of incident light takes place from
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- normal to the surface separating the two media.
When light passes from one medium to another the ray gets bent. This property of light is called ______.
Light bends as it passes from one medium to another. What is this phenomenon called?
Match the following:
| Column I | Column II | ||
| 1. | r > 90 | a. | Light gazes at the surface of separation between the two modes. |
| 2. | r = 90 | b. | No refraction. |
| 3. | r < 90 | c. | Refracted ray away from the normal |
