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10-03-2022
Physics

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Telescope A had an aperture of 15 cm while telescope B that of 5cm how many times of light gathering power does telescope A have compared with telescope B

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10-03-2022

Answer:

Light gathering power is related to the area of the lens aperature:

Aa / Ab = (15 / 5)^2 = 9 since the area of an aperature is proportional to the square of the radius

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