A speech signal of 3 kHz is used to modulate a carrier signal of frequency 1 MHz, using amplitude modulation. The frequencies of the side bands will be
(a) 1.003 MHz and 0.997 MHz (b) 3001 kHz and 2997 kHz
(c) 1003 kHz and 1000 kHz (d) 1 MHz and 0.997 MHz
A speech signal of 3 kHz is used to modulate a carrier signal of frequency 1 MHz, using amplitude modulation. The frequencies of the side bands will be
(a) 1.003 MHz and 0.997 MHz (b) 3001 kHz and 2997 kHz
(c) 1003 kHz and 1000 kHz (d) 1 MHz and 0.997 MHz
This is a Multiple Choice Questions as classified in NCERT Exemplar
Answer- a
Frequency of career signal = 1MHz and frequency = 3KHz= 0.003MHz
So frequency of side bands = 1 0.003
So 1.003MHz and 0.997MHz
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Physics NCERT Exemplar Solutions Class 12th Chapter Fifteen 2025
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