Question

Most waves used for communication purposes rely on geostationary satellites because _____

(a) they cannot transmit data at long distances due to curvature of the earth

(b) they are reflected by the atmosphere

(c) they are very cheap

(d) it does not occupy space on the earth’s surface

I have been asked this question in exam.

Question is taken from Gravitation in division Gravitation of Physics – Class 11

Answer 1

The correct choice is (a) they cannot transmit data at long distances due to curvature of the earth

Easy explanation: Most communication waves cannot transmit data accurately over long distances due to the curvature of the earth. They can only do so in the line of sight. However, they are not reflected by the ionosphere like radio waves and can be relayed to a wide area using geostationary satellites.