JEE Main · PhysicsMedium
In a communication system, the signal-to-noise ratio is $SNR = 30 \text{ dB}$. Calculate the ratio of signal power $S$ to noise power $N$.
- A.10
- B.100
- C.1000
- D.300
Show correct answer & step-by-step solution
Correct answer: C — 1000
Solution
. Therefore, .
Attempt this question & track your score
Sign up free to answer, get instant scoring, and let SolveGini track which Physics topics you need to revise.
Attempt & Track Free →More Communication Systems practice questions
- Which of the following frequency ranges is used for TV transmission in the VHF band?
- What is the primary purpose of a modem in a communication system?
- Sky wave propagation is suitable for radio waves in which frequency range?
- If the height of a transmitting antenna is h, the range of transmission is proportional to which factor?
- Which device is used to reduce the strength of a signal in a communication channel?
- 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
- A transmitting antenna at the top of a tower has a height of 32 m and the height of the receiving antenna is 50 m. What
- In an amplitude modulation system, the total power of the modulated wave is 600 W. If the modulation index is 0.5, what
- A signal of 5 kHz frequency is amplitude modulated on a carrier wave of 2 MHz. What are the frequencies of the sidebands
- A TV transmission tower has a height of 100 m. If the average population density around the tower is 1000 per square kil
- In an amplitude modulation system, the total power is 600 W. If the modulation index is 0.5, what is the power carried b
- A signal of 10 kHz is modulated by a carrier of 1 MHz. If the bandwidth of the channel is 50 kHz, how many such signals