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प्रश्न
Distinguish between real and virtual image.
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उत्तर
Real image:
- Can be taken on the screen.
- It is inverted.
- It is formed when light rays after reflection (or refraction) actually meet.
Virtual image:
- Cannot be taken on-screen.
- It is erect.
- It is formed when rays of light after reflection (or refraction) appear to meet.
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संबंधित प्रश्न
A concave mirror converges the light-rays, but a convex mirror diverges them.
Describe an experiment to show that a light ray bends when it passes from one transparent medium into another transparent medium.
State the changes in the position, size and nature of the image when the object is brought from infinity up to the convex lens. Illustrate your answer by drawing ray diagrams.
State the changes in the position, size and nature of the image when the object is brought from infinity up to a concave lens. Illustrate your answer by drawing ray diagrams.
Say TRUE or FALSE
The image of right hand in a plane mirror looks like a left hand
Say TRUE or FALSE
The image formed in a pinhole camera is always inverted
Say TRUE or FALSE
The image formed in a pinhole camera is always the same size as the object
Calculate the number of images formed by plane mirrors kept at an angle of 10° to each other.
A real image is inverted and can be caught on the screen.
Describe the nature of images formed by plane mirrors.
