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A thin linear object of size 1mm is kept...

A thin linear object of size 1mm is kept along the principal axis of a convex lens of focal length 10cm. The object is at 15cm from the lens. The length of the image is:

A

`1 mm`

B

`4 mm`

C

`2 mm`

D

`8 mm`

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The correct Answer is:
A
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RESONANCE-GEOMATRICAL OPTICS -Exercise-1
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  4. A biconvex lens is used to project a slide on screen. The slide is 2 c...

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  5. The minimum distance between a real object and its real image formed b...

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  6. Two planoconvex lenses each of the focal length of10cm&refractive inde...

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  7. A plano-convex lens, when silvered at its plane surface is equivalent ...

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  8. In the above question the radius of curvature of the curvature of the ...

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  9. The focal length of a plano-concave lens is -10 cm , then its focal le...

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  10. A convex lens of focal length 25 cm and a concave lens of focal length...

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  14. A medium has nv = 1.56, nr=1.44. Then its dispersive power is:

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  15. All the listed things below are made of flint glass. Which one of thes...

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  16. Light of wavelenght 4000 A is incident at small angle on a prim of ape...

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  17. A simple microscope has a focal length of 5 cm . The magnification at...

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  18. In a compound microscope, the intermediate image is

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  19. The resolving power of a telesope is more when its objective lens has

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  20. A Galileo telescope has an objective of focal length 100cm and magnif...

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