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A diminished image of an object is to be...

A diminished image of an object is to be obtained on a screen 1.0 m from it. This can be achieved by appropriately placing

A

A convex mirror of suitable focal length

B

A concave mirrorr of suitable focal length

C

A concave lengs of suitable focal length

D

A convex lens of suitable focal length less than `0.25 m`

Text Solution

Verified by Experts

The correct Answer is:
D
Convex mirrorr and concave lens do not form real image. For concave mirrorr , `vgtu`, so image will be enlarged, hence only convex lens can be used for the purpose.
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A2Z-GEOMETRICAL OPTICS-Section D - Chapter End Test
  1. A thin prism P(1) with angle 4degree and made from glass of refractive...

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  2. A converging lens is used to form an image on a screen. When the upper...

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  3. A diminished image of an object is to be obtained on a screen 1.0 m fr...

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  4. An object 15cm high is placed 10cm from the optical center of a thin l...

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  5. A lens forms a virtual, diminished image of an object placed at 2 m fr...

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  6. When the distance between the object and the screen is more than 4 f....

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  7. a convex lens of power +6 diopter is placed in contact with a concave ...

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  8. A concave lens of focal length 20 cm product an image half in size of ...

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  9. A convex lens of focal length 1.0m and a concave lens of focal length ...

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  10. If in a planoconvex lens, the radius of curvature of the convex surfac...

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  11. A convex lens A of focal length 20cm and a concave lens G of focal le...

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  12. The radii of curvature of the two surfaces of a lens are 20cm and 30 c...

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  13. A lens forms a virtual image 4 cm away from it when an object is place...

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  14. A concave lens of focal length (1)/(3)m forms a real, inverted image t...

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  15. An object is placed at a distance of f//2 from a convex lens. The imag...

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  16. The graph shows how the magnification m produced by a convex thin len...

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  17. A convex lens forms an image of an object placed 20cm away from it at ...

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  18. A converging lens is to projected image of a lamp 4 times the size of ...

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  19. A thin lens produces an upright image of the same size as the object. ...

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  20. A convex lens of focal length 10cm and concave lens of focal length 20...

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