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consider three congerging lenses L1, L2 ...

consider three congerging lenses `L_1, L_2 and L_3` having identical geometrical construction. The index of refraction of `L_1 and L_2 are mu_1 and mu_2` respectively. The upper half of the lens `L_3` has a refractive index `mu_1` and the lower half has `mu_2`. A point object O is imaged at `O_1` by the lens `L_1 and at O_2` by the lens `L_2` placed in same position . If `L_2` is placed at the same place.

A

(i),(ii)

B

(ii),(iii)

C

(i),(iii)

D

(iii),(iv)

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The correct Answer is:
A
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CP SINGH-REFRACTION AT SPHERICAL SURFACES-EXERCISES
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  2. A convex lens is made up of three different materials as shown in the ...

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  3. consider three congerging lenses L1, L2 and L3 having identical geomet...

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  4. A double convex lens made of a material of refractive index mu1, is pl...

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  5. A parallel beam of light is incident on a converging lens parallel to ...

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  6. A point source of light is placed at a distance of 2f from a convergin...

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  7. A thin lens, made of glass of refractive index 3//2, produces a real a...

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  8. A convex lens is used to form a real image of the object shown in the ...

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  9. A convex lens of focal length 16 cm forms a real image double the size...

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  10. An object 1.5 cm high is placed 10 cm from the optical centre of a thi...

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  11. A needle of height 5 cm placed 45 cm from a lens forms an image on a s...

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  12. In previous question, the nature and size of the image are

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  13. An object is placed first at infinity and then at 20 cm from the objec...

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  14. The focal length of convex tens is f and the distance of an object fro...

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  15. The distance between an object and its real image formed by a lens is ...

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  16. An object is placed at a distance of 12 cm from a convex lens on its p...

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  17. When an object is moved along the axis is of a lens images three times...

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  18. The distance between two point object P and Q is 32 cm, a convex lens ...

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  19. An image of a bright square is obtained on a screen with the aid of a ...

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  20. A lens if placed between a source of light and a wall. It forms images...

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