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A radiometer’s single detector has an opening of 2.5 milli-radians and an altitude of 4 km....

A radiometer’s single detector has an opening of 2.5 milli-radians and an altitude of 4 km.
(i) Calculate the diameter of the radiometer (show working).



(ii) If the ground speed of the satellite carrying the radiometer is 6.5m/s, how long will it take to cross this area as calculated above? (Show working).

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Answer #1

Solution :- i) given - Angle of opening = 2.5 millradians = 0.0025 radians Altitude = 4km = 4000 meters Diameter of radiomete

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