Chapter 20: Problem 2731
If a radio receiver amplifies all the signal frequencies equally well, it is said to have high (A) fidelity (B) distortion (C) sensibility (D) sensitivity
Chapter 20: Problem 2731
If a radio receiver amplifies all the signal frequencies equally well, it is said to have high (A) fidelity (B) distortion (C) sensibility (D) sensitivity
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Get started for freeTank Circuit Contains 1 nf capacitor and 10 microhenry inductor What is the carrier frequency generated by it? (A) \(1629 \mathrm{KHz}\) (B) \(1592 \mathrm{KHz}\) (C) \(1582 \mathrm{MHz}\) (D) \(156.2 \mathrm{KHz}\)
On a particular day, the maximum frequency reflected from the ionosphere is $8 \mathrm{MHz}\(. On another day it was found to increase to \)9 \mathrm{MHz}$. The ratio of the maximum electron densities of ionosphere on the two days is (A) \(\sqrt{(8 / 9)}\) (B) \((8 / 9)\) (C) \((8 / 9)^{(3 / 2)}\) (D) \((8 / 9)^{2}\)
In modulation process radio signal is called (A) modulating wave (B) Carrier wave (C) modulated wave (D) transmitting wave
An antenna can transmit \(\quad\) radiation with more efficiency. (A) low frequency (B) high frequency (C) long wave length (D) None of these
The refractive index of the ionosphere (A) increase as we go from the lower to upper layer of the ionosphere (B) decrease as we go from the lower to upper layer of the ionosphere (C) remain the same through out the ionosphere (D) is equal to unity
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