If the angular diameter of the moon be 30', how far from the eye shoul – InterviewSolution

1.	If the angular diameter of the moon be 30', how far from the eye should a coinof diameter 2.2 cm be kept to hide the moon ?
Answer» So r = (360*2.2)/(pi) = 252cmAs r is the distance from eyes. So the coin should be kept at a distance of 252cm.

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