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Where should an object be placed in fron...

Where should an object be placed in front of a convex lens to get a real to get real image of the size of the object ?

A

at principal focus of the lens

B

at twice the focal length of lens.

C

at infinity

D

between opitcal centre of the lens and its princiapal focus.

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MBD -HARYANA BOARD-LIGHT:REFLECTION AND REFRACTION-EXAMPLE
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  3. Where should an object be placed in front of a convex lens to get a re...

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  7. We wish to obtain an erect image of an object, using a concave mirror ...

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  8. Name the type of mirror used in the following situations : (a) Head ...

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  9. Name the type of mirror used in the following situations : (a) Head ...

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  10. Name the type of mirror used in the following situations : (a) Head ...

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  11. One half of a convex lens is covered with a black paper. Will this len...

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  12. 10 cm high object is placed at a distance of 25 cm from a converging l...

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  13. A convceve lens of focal length 15 cm forms an image 10 cm from the le...

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  14. An object is placed at a distance of 10 cm from a convex mirror of foc...

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  15. The magnification produced by a plane mirror is m = +1. What does this...

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  16. An object 5.0 cm in length is placed at a distance of 20 cm in front o...

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  17. An object of size 7.0 cm is placed at 27 cm in front of a concave mirr...

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  18. Find the focal length of a lens of power - 2.0 D. What type of lens is...

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  19. A doctor has prescribed lens of power + 1.5 D. Find the focal length o...

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  20. The image of an object is formed at infinite distance from a concave m...

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