JEE Main Solved Paper 2017 Question 5
Question: In amplitude modulation, sinusoidal carrier frequency used is denoted by $ {\omega_c} $ and the signal frequency is denoted by $ {\omega_m}. $ The bandwidth $ (\Delta {\omega_m}) $ of the signal is such that $ \Delta {\omega_m}«{\omega_c}. $ Which of the following frequencies is not contained in the modulated wave? [JEE Main Solved Paper-2017]
Options:
A) $ {\omega_m}+{\omega_c} $
B) $ {\omega_c}-{\omega_m} $
C) $ {\omega_m} $
D) $ {\omega_c} $
Show Answer
Answer:
Correct Answer: C
Solution:
- Three frequencies are contained $ {\omega_m}+{\omega_c},{\omega_c}-{\omega_m}\And {\omega_c} $
