Q. 184.5( 2 Votes )

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Answer :

Magnification m = 375
Length of the tube L = 15 cm
Focal length of the objective fo = 0.5 cm
We know that
Magnification m =
                375 =
                      =
                  25 =
               25fe = 50 + 2 fe
               23fe = 50
      fe = 50/23 = 2.17 cm.

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