The telescope has a ball radius of 600 mm. The focal length of this mirror is: -60 cm O -30 cm O 35 cm O 120 cm O Not what was mentioned

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An amateur in the study of space bought a
simple astronomical telescope and the curved
mirror was for this
The telescope has a ball radius of 600 mm.
The focal length of this mirror is:
O -60 cm
O -30 cm
O 35 cm
120 cm
Not what was mentioned
Transcribed Image Text:An amateur in the study of space bought a simple astronomical telescope and the curved mirror was for this The telescope has a ball radius of 600 mm. The focal length of this mirror is: O -60 cm O -30 cm O 35 cm 120 cm Not what was mentioned
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