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In Figure. , find the position of final ...

In Figure. , find the position of final image formed.

Text Solution

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For convex lens:
`v=(uf)/(u+f)=(-15xx10)/(-15+10)=30cm`
For concave lense: `u=(30-25)=5cm`
`u=(30-25)=5cm`
`v=(uf)/(u+f)=(5(-10))/(5-10)=10cm`
So, final image is formed 10 cm to the right of the concave lens.
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