a U-2 spy plane flying at altitude of 30km has a camera that can resolve objects...

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a U-2 spy plane flying at altitude of 30km has a camera that can resolve objects...

a U-2 spy plane flying at altitude of 30km has a camera that can resolve objects as small as a man (2m). using visible light 500nm, what is the dimeter of the lens needed?

a)15 mm

b)9.2 mm

c)36 mm

d)63 mm

the answer is b, however, I need the steps on how to get the answer

science physics

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If a camera with a 60 mm lens is to resolve two objects that are 3.0...

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a U-2 spy plane flying at altitude of 30km has a camera that can resolve objects...