Question

A Pilot flying a helicopter looks at the image of the moon in a river. He finds the diameter of the moon covering the entire width of the river. When he lands he finds the diameter of the moon's reflection much smaller than the width of the river. Why does this happen?

A As we go up, the apparent diameter of the moon increases

B As we go up, the apparent width of the river decreases rapidly

C As we go up, the apparent diameter of the moon doesn’t change

D both 2 and 3

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