The SI unit of sound intensity is watt per square meter (W/m2). The standard definition is the calculation of noise sound intensity in the air at the listener position as a quantity of sound energy.

Other Sound Units Some of the other sound units include: sone – a unit of subjective loudness of sound phon – a unit of perceived loudness level of sound Hertz (Hz) – a unit of frequency of sound watt per …

NCERT Solutions for Class 9 Chapter 12 Sound are the best resources to enhance students’ conceptual knowledge on the topic. They contain answers to the questions provided in the textbook in such a …

Sound level meters is mostly used in noise pollution studies to analyze the quantification of various kinds of noise. Thus, this device helps to measure the intensity of the sound, which can measure the …

The sound intensity level at a point 4m from the point source is 10dB and the sound level at a distance 2m from the same source is (x+10)dB. Find the value of x. (log2=0.3)

About NCERT Solutions Class 8 Science Chapter 13 Sound The NCERT solutions cover the answers to the questions provided in the CBSE Class 8 Science Textbook along with extra questions, exemplary …

The pitch of a sound is our ear’s response to the frequency of sound. Whereas loudness depends on the energy of the wave. In general, the pitch is the reason behind the difference in voice quality of …

What is Noise Pollution? The word noise is derived from the Latin word ‘Nausea’, which means sickness in which one feels the need to vomit. Noise is the unpleasant and undesirable sound which leads to …

Speed of Sound Definition The speed of sound is defined as the distance through which a sound wave’s point, such as a compression or a rarefaction, travels per unit of time. The speed of sound remains …

To know more about the Types of Waves, visit here. Sound Properties Introduction to Sound Waves Sound needs a medium to propagate. The matter or material through which sound propagates is …