What is noise ?

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Answer :

The word which is painful and annoying for the feeling is called noise noise.
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Why do **** glasses emit static noise?

Description : Why do wine glasses emit static noise?

Last Answer : This is called seashell resonance.

What is the amount of noise in a jet engine ?

Description : What is the amount of noise in a jet engine ?

Last Answer : The noise level of jet engine is 110 to 140 dB

Negative feedback in amplifiers – (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and in-creases noise (4) decreases bandwidth and increases noise

Description : Negative feedback in amplifiers – (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and in-creases noise (4) decreases bandwidth and increases noise

Last Answer : (1) increases bandwidth and decreases noise Explanation: Voltage gain, input impedance, output impedance, bandwidth etc. are few important characteristics of an amplifier. These parameters are more or ... be controlled. This can be conveniently achieved by employing a technique, called the feedback.

The unit of noise pollution (level) is – (1) decibel (2) decimal (3) ppm (4) None of these

Description : The unit of noise pollution (level) is – (1) decibel (2) decimal (3) ppm (4) None of these

Last Answer : (1) decibel Explanation: Noise pollution refers to any unpleasant, damaging or irritating noise that has the potential to harm people, wildlife or the environment. The decibel (dB) is the main unit used ... can also be measured. by its pitch, which is the frequency of sound vibrations per second.

Permissible noise level at Residential area during night time is : (1) 45 dB (2) 55 dB (3) 75 dB (4) 80 dB

Description : Permissible noise level at Residential area during night time is : (1) 45 dB (2) 55 dB (3) 75 dB (4) 80 dB

Last Answer : (1) 45 dB Explanation: As per the norm, the permissible noise level in residential areas is 45 db during night time, 55 db during day and in commercial areas it is 55 db during night and 65 db during day.

Noise is measured in – (1) Watt (2) REM (3) Centigrade (4) Decibel

Description : Noise is measured in – (1) Watt (2) REM (3) Centigrade (4) Decibel

Last Answer : (4) Decibel Explanation: The decibel (dB) is a logarithmic unit that indicates the ratio of a physical quantity (usually power or intensity) relative to a specified or implied reference level. A ratio in ... from their roosts in caves, attics, or trees at dusk and hunt for insects into the night.

Electrostatic precipitator is used to control the pollution of – (1) air (2) water (3) noise (4) thermal

Description : Electrostatic precipitator is used to control the pollution of – (1) air (2) water (3) noise (4) thermal

Last Answer : (1) air Explanation: An electrostatic precipitator (ESP), or electrostatic air cleaner is a particulate collection device that removes particles from a flowing gas (such as air) using the force of an ... particles from a flowing gas (such as air) using the force of an induced electrostatic charge.

Electrostatic precipitator is used to control — (1) Air pollution (2) Water pollution (3) Solid waste (4) Noise pollution

Description : Electrostatic precipitator is used to control — (1) Air pollution (2) Water pollution (3) Solid waste (4) Noise pollution

Last Answer : (1) Air pollution Explanation: An electrostatic precipitator (ESP), or electrostatic air cleaner is a particulate collection device that removes particles from a flowing has (such as air) using the force ... , and can easily remove fine particulate matter such as dust and smoke from the air stream.

The unit of measurement of noise is – (1) Decibel (2) Hertz (3) Amplifier (4) Acoustics

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Last Answer : (1) Decibel Explanation: The decibel (dB) is the unit used to measure the intensity of sound or noise level. It is given in terms of a logarithmic function of a ratio of power intensities. One ... one bel, named in honor of Alexander Graham Bell who was the inventor of the telephone and phonograph.

A decibel is – (1) A musical instrument (2) The wavelength of noise (3) A musical note (4) A measure of sound level

Description : A decibel is – (1) A musical instrument (2) The wavelength of noise (3) A musical note (4) A measure of sound level

Last Answer : (4) A measure of sound level Explanation: The decibel (dB) is a logarithmic unit that indicates the ratio of a physical quantity (usually power or intensity) relative to a specified or implied reference ... ratio in decibels is ten times the logarithm to base 10 of the ratio of two power quantities.

Unwanted signal that distorts a transmitted signal is called A. analogue B. noise C. digital D. tuning

Description : Unwanted signal that distorts a transmitted signal is called A. analogue B. noise C. digital D. tuning

Last Answer : noise

Data in compact disc is stored in form of A. analogue signal B. digital signal C. noise D. colors

Description : Data in compact disc is stored in form of A. analogue signal B. digital signal C. noise D. colors

Last Answer : digital signal

The unit of measurement of noise is (1) Decibel (2) Hertz (3) Amplifier (4) Acoustics

Description : The unit of measurement of noise is (1) Decibel (2) Hertz (3) Amplifier (4) Acoustics

Last Answer : Decibel

The unit of noise pollution (level) is : (1) decibel (2) decimal (3) ppm (4) None of these

Description : The unit of noise pollution (level) is : (1) decibel (2) decimal (3) ppm (4) None of these 

Last Answer : decibel

Permissible noise level at Residential area during night time is : (1) 45 dB (A) (2) 55 dB (A) (3) 75 dB (A) (4) 80 dB (A)

Description : Permissible noise level at Residential area during night time is : (1) 45 dB (A) (2) 55 dB (A) (3) 75 dB (A) (4) 80 dB (A)

Last Answer : 45 dB (A)

Negative feedback in amplifiers (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and increases noise (4) decreases bandwidth and increases noise

Description : Negative feedback in amplifiers (1) increases bandwidth and decreases noise (2) decreases bandwidth and decreases noise (3) increases bandwidth and increases noise (4) decreases bandwidth and increases noise

Last Answer :  increases bandwidth and decreases noise

Electrostatic precipitator is used to control – (1) Air pollution (2) Water pollution (3) Solid waste (4) Noise pollution

Description : Electrostatic precipitator is used to control – (1) Air pollution (2) Water pollution (3) Solid waste (4) Noise pollution

Last Answer : Air pollution

Noise is measured in (1) Watt (2) REM (3) Centigrade(4) Decibel

Description : Noise is measured in (1) Watt (2) REM (3) Centigrade(4) Decibel

Last Answer : Decibel

A decibel is (1) a musical instrument (2) the wavelength of noise (3) a musical note (4) a measure of sound level

Description : A decibel is (1) a musical instrument (2) the wavelength of noise (3) a musical note (4) a measure of sound level

Last Answer : a measure of sound level

Electrostatic precipitator is used to control the pollution of (1) air (2) water (3) noise (4) thermal

Description : Electrostatic precipitator is used to control the pollution of (1) air (2) water (3) noise (4) thermal

Last Answer : air