How far from the eye should a coin

Reference no: EM13190414

if the angular diameter of the moon be 30' , how far from the eye should a coin of diameter 2.2 cm be kept to hide the moon?

Reference no: EM13190414

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How far from the eye should a coin : if the angular diameter of the moon be 30' , how far from the eye should a coin of diameter 2.2 cm be kept to hide the moon?

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