Optics Question 62
Question: Assertion : Microwave communication is preferred over optical communication. Reason : Microwaves provide large number of channels and band width compared to optical signals.
[AIIMS 2003]
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: A
Solution:
Microwave communication is preferred over optical communication because microwaves provide large number of channels and wider band width compared to optical signals as information carrying capacity is directly proportional to band width.
So, wider the band width, greater the information carrying capacity.
