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  4. A diverging lens with magnitude of focal length 25 cm is placed at a distance of 15 cm from a converging lens of magnitude of focal length 20 cm. A beam of parallel light falls on the diverging lens. The final image formed is :

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Q. A diverging lens with magnitude of focal length $25\, cm$ is placed at a distance of $15\, cm$ from a converging lens of magnitude of focal length $20\, cm$. A beam of parallel light falls on the diverging lens. The final image formed is :

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Solution:

For converging lens
$u = -40$ cm which is equal to $2f$
$\therefore $ Image will be real and at a distance of 40 cm from convergent lens.

Solution Image