This chapter is currently out of syllabus
1
JEE Main 2023 (Online) 30th January Morning Shift
+4
-1
Out of Syllabus

A sinusoidal carrier voltage is amplitude modulated. The resultant amplitude modulated wave has maximum and minimum amplitude of $$120 \mathrm{~V}$$ and $$80 \mathrm{~V}$$ respectively. The amplitude of each sideband is :

A
15 V
B
20 V
C
5 V
D
10 V
2
JEE Main 2023 (Online) 29th January Evening Shift
+4
-1
Out of Syllabus

The modulation index for an A.M. wave having maximum and minimum peak-to-peak voltages of 14 mV and 6 mV respectively is-

A
0.4
B
0.6
C
1.4
D
0.2
3
JEE Main 2023 (Online) 29th January Morning Shift
+4
-1
Out of Syllabus

If the height of transmitting and receiving antennas are 80 m each, the maximum line of sight distance will be:

Given : Earth's radius $$=6.4\times10^6$$ m

A
28 km
B
64 km
C
32 km
D
36 km
4
JEE Main 2023 (Online) 25th January Morning Shift
+4
-1
Out of Syllabus

A message signal of frequency 5 kHz is used to modulate a carrier signal of frequency 2 MHz. The bandwidth for amplitude modulation is :

A
10 kHz
B
2.5 kHz
C
20 kHz
D
5 kHz
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