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  3. Draw the ray diagram of an astronomical telescope showing image formation in the normal adjustment position. Write the expression for its magnifying power.
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Draw the ray diagram of an astronomical telescope showing image formation in the normal adjustment position. Write the expression for its magnifying power.

 

 
 
 
 
 

Answers (1)
S Safeer PP

The ray diagram of an astronomical telescope ;

The expression for its magnifying power is given as ;

Magnification =\frac{fo}{fe}

Or             m=\frac{\beta }{\alpha }

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