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In the given diagram find the position w...

In the given diagram find the position where the equivalent lens can be placed for image formation by rays takes place at same place as in the given diagram. Assume that all the curved surfaces have same radii and same optical axis for both the lenses.

A

2.5 cm from lens `L_1`

B

3.0 cm from `L_1`

C

7.5 cm from `L_1`

D

10.0 cm from `L_1`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-GEOMETRICAL OPTICS-ADDITIONAL PRACTICE EXERCISE (LEVEL-II LECTURE SHEET(ADVANCED) STRAIGHT OBJECTIVE TYPE QUESTIONS)
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  2. Light is incident from glass (mu = 1.50) to water (mu = 1.33) find th...

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  3. A ray of light is incident at an angle of 75^(@) into a medium having ...

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  4. A beam of parallel rays of width b cm propagates in glass at an angle ...

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  5. A small object of height 0.5 cm is placed in front of a convex surface...

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  6. A ball is kept at a height h above the surface of a heavy transparent ...

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  7. A ring of radius 1cm is placed 1m in front of a spherical glass ball...

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  8. The radii of curvature of two spherical surfaces of a concave convex l...

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  9. A light ray travelling parallel to the principal axis of a convex lens...

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  10. Twot thin lenses when placed in contact, then the power of combination...

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  11. A convex lens is placed some where between an object and a screen whic...

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  12. A point object moves along the principal axis of a convex lens of foca...

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  13. A thin plano-convex lens of focal length f is split into two halves. O...

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  14. A converging lens L(1) of focal length 20 cm is separated by 8 cm from...

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  15. A point object is placed at a distance of 20 cm from a thin plano-conc...

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  16. Figure shows an arrangement ofan equiconvex lens (f=20 cm in air) and ...

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  17. A point object O is placed at a distance of 0.3m from a convex lens (f...

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  18. A small object stuck on the surface of a glass sphere (n=1.5) is viewe...

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  19. A plano-convex lens has thickness 4cm. When places on a horizontal tab...

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  20. In the given diagram find the position where the equivalent lens can b...

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