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The minimum distance between an object a...

The minimum distance between an object and its real image formed by a convex lens is

A

1.5 f

B

2 f

C

2.5 f

D

4f

Text Solution

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The correct Answer is:
D

`2f+2f=4f`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-RAY OPTICS-EXERCISE 1 (TOPICAL PROBLEMS)
  1. The real image which is exactly equal to the size of an object is to b...

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  2. A plano-convex lens of curvature of 30 cm and refractive index 1.5 pro...

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  3. The minimum distance between an object and its real image formed by a ...

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  4. A convex lens of refractive index 3/2 has a power of 2.5^(@). If it is...

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  5. Two thin lenses of focal lengths f(1) and f(2) are in contact. The fo...

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  6. Two thin lenses, one of focal length + 60 cm and the other of focal le...

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  7. A convex lens of focal length 40 cm is in contact with a concave lens ...

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  8. Two similar plano-convex lenses are combined together in three differe...

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  9. Two thin lenses of focal lengths 20 cm and 25 cm are placed in a conta...

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  10. We combined a convex lens of focal length f(1) and concave lens of foc...

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  11. For a normal eye, the least distance of distinct vision is……..and far ...

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  12. When we see an object the image formed on the retina is

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  13. The focal length of a normal eye lens is about

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  14. An object is placed at a distance u from a simple microscope of focal ...

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  15. Magnifying power of a simple microscope is (when final image is formed...

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  16. In a compound microscope, the intermediate image is

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  17. A compound microscope has two lenses. The magnifying power of one is 5...

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  18. The length of the compound microscope is 14 cm. The magnifying power f...

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  19. If the focal length of objective and eye lens are 1.2 cm and 3 cm resp...

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  20. The focal length of objective and eye lens of a microscope are 4 cm an...

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