Question

A communication satellite in orbit send a parallel beam of signals down to earth. If these singles obey the same laws of reflection as light

Answer 1

Explanation:

these signals obey the same laws of reflections as light and are to be focussed onto a small receiveing aerial, what should be the best shape of the metal 'dish' used to collect them ? Answer : Concave mital dish : It wil collect the parallel beam of satellite signals at its focus where raceiving aerial is fixed.

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