Curioustab

Home » Electronics and Communication Engineering » Communication Systems

Signal to noise ratio of microphone is defined as the ratio of output when the sound pressure is __________ to the output in the absence of any sound signal.

0.5 Pa
0.2 Pa
0.1 Pa
0.01 Pa

Correct Answer: 0.1 Pa

Explanation:

0.1 Pa (= 0.5 x 10^-4 W/m²) is taken as standard sound pressure for defining S/N ratio of microphones.

← Previous Question Next Question→

More Questions from Communication Systems

Some types of traps used in video IF amplifier of colour TV are
Consider the following statements The amplitude of an FM wave is constant FM is more immune to noise than AM FM broadcasts operate in upper VHF and UHF frequency ranges FM transmitting and receiving equipments are simpler as compared to AM transmitting and receiving equipments Which of the above are correct?
The colour subcarrier and sidebands produced by its modulation with the chrominance signals are accommodated in the standard channel width by the process of
As the frequency increases, the absorption of ground wave by earth's surface
The velocity of sound waves in air
Counterpoise is used in coils having
A modem is classified as low speed if data rate handled is
A carrier wave carries information.
A woofer should be fed from the input through a
A generator is feeding power to a transmission line of characteristic impedance Z0. The line is terminated in impedance ZL. Standing waves will be set up if

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion