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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
Give two characteristics of the virtual image formed by a convex lens.
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
A plane mirror is opaque
A boy of height 1m 45 cm is standing in front of a long mirror at a distance of 2 m. From this information, fill up the following sentences:
- The distance between the boy and his image is ______
- The height of the image is______
- When the boy moves 1m forward, the distance between her and her image is______
What are the characteristics of an image formed in a plane mirror?
We can create enlarged, virtual images with ______.
Write the difference between real images and virtual images.
Calculate the number of images formed by plane mirrors kept at an angle of 10° to each other.
If magnification is +1.5. The image is ______.
