Q36 of 81 Page 225

Find the minimum colatitude which can directly receive a signal from a geostationary satellite.

The Geostationary satellites revolve around the earth in the plane of the equator. As earth is a sphere, the signals can only be transmitted to the latitudes lying below the tangents front he satellite to the earth.

Here, we need to find the angle . From geometry, .


In triangle ,






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