JEE Main 2019 — Physics solution | Fundamenthol

JEE Main2019Physics

Q.

An amplitude modulated signal is plotted below:

Which one of the following best describes the above signal?

A
(9 + sin(2 $π$ ×10⁴t))sin(2.5 $π$ × 10⁵t) V
B
(9 + sin(4 $π$ × 10⁴t))sin(5 $π$ ×10⁵t) V
C
(1 + 9sin(2 $π$ ×10⁴t))sin(2.5 $π$ × 10⁵t) V
D
(9 + sin(2.5 $π$ ×10⁵t))sin(2 $π$ × 10⁴t) V

Solution

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