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Chapter 20: Problem 2730

Assertion: Microwave communication is preferred over optical communication. Reason: Microwaves provide large number of channels and bandwidth an compared to optical signals. (A) Both assertion and reason are true and the reason is correct explanation of assertion (B) Both assertion and reason are true and the reason is not the correct explanation of assertion. (C) Assertion is true but reason is false. (D) Both assertion and reason are false.

Short Answer

Expert verified
(D) Both assertion and reason are false.

Step by step solution

01

Analyze the assertion

The assertion states that microwave communication is preferred over optical communication. We need to analyze the statement and determine whether it is true or false. Microwave communication uses electromagnetic waves with relatively low frequencies, which can traverse long distances and penetrate through obstacles. Optical communication, on the other hand, uses high-frequency light waves and can transmit a significantly higher amount of data at much faster speeds. Hence, optical communication is generally preferred over microwave communication due to its higher capacity and speed. Therefore, the assertion is false.
02

Analyze the reason

The reason states that microwaves provide a large number of channels and bandwidth compared to optical signals. We need to analyze this statement and determine whether it is true or false. Microwave communication uses lower-frequency signals compared to optical communication, which results in a more limited number of available channels and a lower bandwidth. On the other hand, optical communication's use of high-frequency light waves enables it to have a significantly larger number of channels and bandwidth. Thus, optical communication offers more channels and bandwidth as compared to microwave communication. Therefore, the reason is false.
03

Choose the correct answer

As both assertion and reason are false, the correct answer is: (D) Both assertion and reason are false.

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