Home Physics Communication System ( Not In Syllabus ) JEE (Main) / AIEEE Problems ( Previous Years ) Which of the following four alternatives is …
Physics Communication System ( Not In Syllabus ) JEE (Main) / AIEEE Problems ( Previous Years ) MCQ (Single Correct)

Which of the following four alternatives is not correct?

We need modulation:

A
to reduce the time lag between transmission and reception of the information signal
B
to reduce the size of antenna
C
to reduce the fractional band width, that is the ratio of the signal band width to the centre frequency
D
to increase the selectivity.

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Text Solution

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The correct answer is:
B

Carrier has high frequency which reduces desired anlena aize

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