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Rules of Ray Diagram for Representation of Image

In the figure...

Question

In the figure given, there are two convex lens $L_{1}$ and $L_{2}$ having focal length of $f_{1}$ and $f_{2}$ respectively. The distance between $L_{1}$ and $L_{2}$ will be:

f_{1}

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f_{2}

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f_{1} + f_{2}

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f_{1} - f_{2}

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Solution

The correct option is C $f_{1} + f_{2}$

For a combination of convex lens if a parallel beam has to emerge as a parallel beam then both the lenses focus should coincide :

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In the figure given, there are two convex lens L1 and L2 having focal length of f1 and f2 respectively. The distance between L1 and L2 will be:

The correct option is C f1+f2For a combination of convex lens if a parallel beam has to emerge as a parallel beam then both the lenses focus should coincide :

In the figure given, there are two convex lens $L_{1}$ and $L_{2}$ having focal length of $f_{1}$ and $f_{2}$ respectively. The distance between $L_{1}$ and $L_{2}$ will be:

The correct option is C $f_{1} + f_{2}$

For a combination of convex lens if a parallel beam has to emerge as a parallel beam then both the lenses focus should coincide :