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An object is placed at a distance of (f)...

An object is placed at a distance of `(f)/(2)` from a convex lens of focal length. The image will be

A

at one of the foci, virtual and double its size.

B

at 2f and of same size.

C

at 2f, virtual and erect.

D

virtual and half its size.

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TARGET PUBLICATION-OPTICS-EXERCISE
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  2. The lens shown in the figure drawn below is made of two different mate...

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  3. An object is placed at a distance of (f)/(2) from a convex lens of foc...

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  5. A student measures the focal length of a convex lens by keeping an obj...

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  6. Graph of position of image vs position of point object from a convex l...

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  9. A double convex thin lens made of glass (refractive index mu=1.5) has ...

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  10. A convex lens of glass (mu=1.5) has a focal length of 8 cm when placed...

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  11. The power of a thin convex lens (""(a) mu(g)=1.5) is +5.0 D. When it i...

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  12. Figure given below shows a beam of light converging at point P. When a...

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  13. When two thin lenses are kept in contanct, the focal length of the com...

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  14. In the figure an air less of raddi of curvature 10 cm (R1 = R2 = 10 cm...

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  15. The ray diagram could be correct.

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  16. How does the magnification (m) of the real image formed by a lens vary...

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  17. As shown in the figure, the liquids L1, L2 and L3 have refractive indi...

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  18. Twon similar plano-covexlenses are combined together in three differen...

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  19. A beam of parallel rays is brought to a focus by a plano-convex lens. ...

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  20. A concave and convex and have the same focal length of 20 cm and are p...

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