What is intensity of sound for Class 10?

The intensity of a sound wave is defined as the amount of sound energy passing through a unit area per second.

What is intensity of sound class 9?

Intensity : The amount of sound energy passing each second through unit area is called the Intensity of Sound.

What is the intensity of sound Class 8?

The loudness of sound is determined by the intensity of the sound waves. Intensity is a measure of the amount of energy in sound waves. The unit of intensity is the decibel (dB). Decibels are measured on a logarithmic scale with the base 10.

What is sound intensity and loudness?

The intensity of a sound is the power of the sound in Watts divided by the area the sound covers in square meters. The loudness of a sound relates the intensity of any given sound to the intensity at the threshold of hearing. It is measured in decibels (dB). The threshold of human hearing has an intensity of about .

What is the equation for sound intensity?

The standard text is the measurement of sound intensity of the noise in the air at the location of the listener as a sound energy quantity. The sound intensity formula is given as, Where, P = sound power, A = area. To measure Sound intensity level, you need to compare the given sound intensity with the standard intensity.

What is the unit of intensity of sound?

Sound Intensity. Sound intensity is defined as the sound power per unit area. The usual context is the measurement of sound intensity in the air at a listener’s location. The basic units are watts/m2 or watts/cm2 .

What is the equation for sound energy?

Sound energy density or sound density is the sound energy per unit volume. The SI unit of sound energy density is the pascal (Pa), that is the joule per cubic metre (J/m3) in SI based units.

What is sound intensity in physics?

Sound intensity, amount of energy flowing per unit time through a unit area that is perpendicular to the direction in which the sound waves are travelling. Sound intensity may be measured in units of energy or work—e.g., microjoules (10-6 joule) per second per square centimetre—or in units of power, as microwatts (10-6 watt) per square centimetre.