Jason has a 45-power telescope whose objective lens has a


Jason has a 45-power telescope whose objective lens has a focal length of 120 {\rm cm}. To make his sister appear smaller than normal, he turns the telescope around and looks through the objective lens.

What is the angular magnification of his sister when viewed through the "wrong" end of the telescope?

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Physics: Jason has a 45-power telescope whose objective lens has a
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