- #1
nannygreen
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I need some help on how to start this problem and I think I can work it out.
A laser beam is directed at the moon 380,000 km from earth. The beam diverges at an angle of 1.8 x 10-5 rad. How large a spot will it make on the moon?
A laser beam is directed at the moon 380,000 km from earth. The beam diverges at an angle of 1.8 x 10-5 rad. How large a spot will it make on the moon?