A paraboloid reflector has mouth diameter D meters, wavelength meter – McqOptions

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1.	A paraboloid reflector has mouth diameter D meters, wavelength meters. Its beam width is equal to
A.	<img src="/_files/images/electronics-and-communication-engineering/communication-systems/522-609-1.png">
B.	<img src="/_files/images/electronics-and-communication-engineering/communication-systems/522-609-2.png">
C.	<img src="/_files/images/electronics-and-communication-engineering/communication-systems/522-609-3.png">
D.	<img src="/_files/images/electronics-and-communication-engineering/communication-systems/522-609-4.png">
Answer» B. <img src="/_files/images/electronics-and-communication-engineering/communication-systems/522-609-2.png">

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