A radar beam usually follows a _________ path in vacuum.(a) Closed(b) Vertical(c) Circular(d) LinearThis question was addressed to me by my college professor while I was bunking the class.This question is from Aviation Communication Systems topic in chapter Aviation Communication Systems of Aircraft Maintenance

A radar beam usually follows a _________ path in vacuum.(a) Closed(b)

1.	A radar beam usually follows a _________ path in vacuum.(a) Closed(b) Vertical(c) Circular(d) LinearThis question was addressed to me by my college professor while I was bunking the class.This question is from Aviation Communication Systems topic in chapter Aviation Communication Systems of Aircraft Maintenance
Answer» The correct option is (d) Linear Explanation: A radar BEAM usually follows a linear path in vacuum. Although the beam follows a slightly curved path in the atmosphere, this CHANGE is DUE to the variation of the RI of air.

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