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Give three basic differences between rea...

Give three basic differences between real image and virtual image.

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Distinguish between real and virtual image with an example.

Assertion :- The minimum distance between a real object and its real image formed by a convex lens is 4f. Reason :- Convex mirror and concave lens form a virtual and erect image for all positions of the real object.

Name the lens which forms a real image or a virtual image depending on the position of the object .

When an object is at distances x and y from a lens, a real image and a virtual image is formed respectively having same magnification. The focal length of the lens is

LAKHMIR SINGH & MANJIT KAUR-LIGHT-EXERCISEE
  1. Fill in the following blanks with suitable words : When a beam of w...

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  2. Name two types of spherical mirrors ? Which type of mirror can form a ...

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  3. Give three basic differences between real image and virtual image.

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  4. What is the basic difference between a concave mirror and a convex mir...

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  5. State two differences between a convex lens and a concave lens. Give o...

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  6. Match the Items given in column I with one or more items of column II.

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  7. State the characteristics of the image formed by a plane mirror.

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  8. What are the characteristics of the image formed by a concave mirror w...

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  9. Give three characteristics of the image formed by a concave mirror whe...

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  10. State three characteristics of the image formed by a convex lens when ...

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  11. Draw ray diagrams showing the image formation by a concave lens when a...

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  12. An object is placed at a distance of 15 cm from a convex lens of focal...

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  13. What would your image look like if you stood close to a large : (a) ...

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  14. What would your image look like if you stood close to a large : (a) ...

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  15. a) What type of images can a convex lens make? b) What type of image...

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  16. a) What type of images can a convex lens make? b) What type of image...

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  17. Name the scientist who discovered that sunlight consists of seven colo...

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  18. Name the scientist who discovered that sunlight consists of seven colo...

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  19. State any two observations from everyday life which show that light tr...

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  20. What did Newton demonstrate by his experiments with the perism ?

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