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Cutting of Thin Lenses

If two thin l...

Question

If two thin lenses of focal length f₁ and f₂ are held in contact then the focal length of the combination will be

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Solution

The correct option is C

If two thin lenses of focal length f₁ and f₂ are held in contact then the focal length of the combination will be

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Similar questions

Two thin lenses of focal lengths $f_{1}$ and $f_{2}$ are placed in contact with each other. The focal length of the combination will be given by:

f_{1}

f_{2}

\frac{1}{f} = \frac{1}{f_{1}} + \frac{1}{f_{2}}

f_{1}

f_{2}

\frac{1}{F} = \frac{1}{f_{1}} + \frac{1}{f_{2}}

^{'} f^{'}

^{'} f^{'}

\frac{1}{F} = \frac{1}{f_{1}} + \frac{1}{f_{2}} - \frac{d}{f_{1} f_{2}}

F =

f_{1}

f_{2}

^{'} d^{'}

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