How large would a coin be with diameter of 3/4 in appear through a 5x lens

  h ’= 3.75 inch

Explanation:

For this exercise we use the definition of magnification which is the height of the image over the height of the object

                 m = h ’/ h

                  h’= m h

Let's calculate

               h ’= 5  3/4

              h ’= 3.75 inch

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