Sound Produced by Loudspeakers

Q.

At what frequency is AC supplied to residential houses?

Q. You are asked to lower the volume of your television. How will it affect the characteristics of the sound wave?

1. Decrease in amplitude
2. Increase in amplitude
3. Increase in frequency
4. Decrease in frequency

Q. Which of the following character of sound is modified using a loudspeaker.

1. frequency
2. velocity
3. wavelength
4. amplitude

Q. difference between amplitude and intensity of sound

Q. The level of loudness of a sound is measured in ________.

1. decibels
2. hertz
3. pascals
4. metres

Q. What is the unit in which loudness of sound is measured?

Q.

A note produced by a musical instrument does not have a single frequency

1. True
2. False

Q. If amplitude is increased to its 10% what will be the change in intensity of the sound?

Q. The level of loudness of a sound is measured in ________.

1. hertz
2. metres
3. pascals
4. decibels

Q. The level of loudness of a sound is measured in ________.

1. hertz
2. decibels
3. metres
4. pascals

Q.

The loudness of sound is measured in ___ .

Q. Which of the following statements is true?

1. A tone consists of a single frequency.
2. A tone consists of multiple frequencies.
3. A note consists of a single frequency.
4. A note consists of only two frequencies.

Q. The level of loudness of a sound is measured in ________.

1. pascals
2. decibels
3. metres
4. hertz