Diffraction occurs when radio path between Tx. And Rx. Is obstructed by ____________(a) Surface having sharp irregularities(b) Smooth irregularities(c) Rough surface(d) All types of surfacesThe question was asked in an interview.My question is taken from Diffraction in chapter Mobile Radio Propagation: Large – Scale Path Loss of Wireless/Mobile

Diffraction occurs when radio path between Tx. And Rx. Is obstructed b

1.	Diffraction occurs when radio path between Tx. And Rx. Is obstructed by ____________(a) Surface having sharp irregularities(b) Smooth irregularities(c) Rough surface(d) All types of surfacesThe question was asked in an interview.My question is taken from Diffraction in chapter Mobile Radio Propagation: Large – Scale Path Loss of Wireless/Mobile
Answer» Right OPTION is (a) Surface having SHARP irregularities Explanation: Diffraction OCCURS when radio path between transmitter and receiver is obstructed by a surface that has sharp irregularities (edges). The secondary WAVES resulting from the obstructing surface are present THROUGHOUT the space and even behind the obstacle.

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