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You are given three lenses L(1),L(2) and...

You are given three lenses `L_(1),L_(2) and L_(3)` each of focal length 20 cm. An object is kept at 40 cm in front of `L_(1),` as shown. The final real image is formed at the focus 'I' of `L_(3).` Find the separations between `L_(1),L_(2) and L_(3).`

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RESONANCE-GEOMATRICAL OPTICS -Exercise-3
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  4. The image obtained with a convex lens is erect and its length is 4 tim...

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  5. A converging lens is kept coaxially in contact with a diverging lens -...

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  17. Which type of lens is used to correct astigmatisum ?

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  18. A biconcave lens made of transparent material of refractive index 1.25...

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  19. Two monochromatic rays of light are incident normally on the face AB o...

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