JEE Advanced Physics: Communication Systems Practice Questions

11 questions with answers and step-by-step solutions. Tap any question to see the full worked solution.

Q1.
$The height of a transmitting antenna is 80 m and the receiving antenna is 45 m. The maximum line-of-sight distance between them is (take radius of Earth as 6400$
Easy
Q2.
$Sky wave propagation is suitable for radio waves in the frequency range of:$
Easy
Q3.
$In amplitude modulation, the bandwidth of the signal is:$
Easy
Q4.
$Which of the following frequency ranges is used for TV transmission?$
Easy
Q5.
$A message signal of frequency 10 kHz and peak voltage of 10 V is used to modulate a carrier wave of frequency 1 MHz and peak voltage of 20 V. The modulation ind$
Easy
Q6.
$A carrier wave of peak voltage 12 V is modulated by a sinusoidal signal to a depth of 50 percent. Calculate the peak voltages of the upper and lower sidebands.$
Medium
Q7.
$A message signal of frequency 10 kHz and peak voltage 10 V is used to modulate a carrier wave of frequency 1 MHz and peak voltage 20 V. Determine the modulation$
Medium
Q8.
$A signal of 5 kHz is transmitted using an AM transmitter. If the carrier frequency is 1 MHz, what is the bandwidth of the transmitted signal?$
Medium
Q9.
$In a frequency modulation system, the frequency deviation is 50 kHz and the modulating frequency is 10 kHz. Calculate the bandwidth of the FM signal using Carso$
Hard
Q10.
$For a sky wave propagation, the critical frequency of the ionospheric layer is 10 MHz. Calculate the maximum usable frequency for a signal transmitted at an ang$
Hard
Q11.
$A receiver is connected to an antenna with an effective height of 50 meters. If the electric field intensity of the incident electromagnetic wave is 2 microvolt$
Hard

Track your progress on Communication Systems

Start Practising Free →