General Physics Questions And Answers
Q1.
Name the process of recovering the original information signal from the modulated wave at the receiver end.
Ans.
Demodulation
Q2.
The communication system needed for a given signal depends on which of the following?
Ans.
Band of frequencies
Q3.
The frequencies for transmitting music is which of the following?
Ans.
High
Q4.
A TV signal is allocated with a bandwidth of 6 MHz.
Ans.
True
Q5.
Which of the following is not a medium of transmission?
Ans.
Microwave system
Q6.
PAM stands for pulse attenuation modulation.
Ans.
False
Q7.
How can the noise be reduced in AM signal?
Ans.
Increasing frequency deviation
Q8.
Suggest a possible communication channel for the transmission of a message signal that has a bandwidth of 200kHz.
Ans.
FM radio
Q9.
Identify the type of modulation where the modulating wave is superimposed on a high-frequency carrier wave.
Ans.
Amplitude modulation
Q10.
What is a way to produce a signal?
Ans.
Superimposition with a carrier signal
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