( Ill) A 7.5 X pair of binoculars has an objective focal
Chapter , Problem 71(choose chapter or problem)
( Ill) A 7.5 X pair of binoculars has an objective focal lengthof 26 cm. If the binoculars are focused on an object 4.0 maway (from the objective), what is the magnification? (The7.5 X refers to objects at infinity; Eq. 33-7 holds only forobjects at infinity and not for nearby ones.)
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