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CBSE Class 12-science Answered

A transmitting antenna at the top of a tower has a height of 22 m and the height of the receiving antenna 40 m. What is the maximum distance between them, for satisfactory communication in LOS mode ? ( Radius of earth = 6400 km) 
Asked by Topperlearning User | 09 Jul, 2014, 10:33: AM
answered-by-expert Expert Answer

Answered by | 09 Jul, 2014, 12:33: PM

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CBSE 12-science - Physics
what is 5g technology and how it works?
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CBSE 12-science - Physics
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What do you understand by the term modulation?
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CBSE 12-science - Physics
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CBSE 12-science - Physics
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CBSE 12-science - Physics
What do you understand by frequency modulation? A signal of 10 kHz and peak voltage 20 V is used to modulate a carrier wave of frequency 10 MHz and peak voltage 40 V.Calculate a) depth of modulation .b) side bands frequencies.
Asked by Topperlearning User | 08 Jul, 2014, 10:36: AM
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CBSE 12-science - Physics
Write main advantages and disadvantages of the AM technique.
Asked by Topperlearning User | 08 Jul, 2014, 11:00: AM
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CBSE 12-science - Physics
Give three reasons which make modulation of message (or information) essential in a communication system.
Asked by Topperlearning User | 08 Jul, 2014, 11:14: AM
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CBSE 12-science - Physics
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Asked by Topperlearning User | 08 Jul, 2014, 11:23: AM
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