
What is the measure of how loud or soft a sound is called?
Answer
164.1k+ views
Hint: The loudness of sound is determined by the function of the intensity of the sound wave. The loudness of a sound relates the intensity of the sound wave of any given sound to the intensity of the sound wave at the threshold of hearing.
Complete step by step solution:
- The loudness of Sound refers to how loud or soft a sound seems to a listener. The loudness of sound is determined by the help intensity of the sound waves. The intensity of a sound wave is a measure of the amount of energy associated with a sound wave.
- The intensity of a sound wave is determined by two factors: the amplitude of the sound wave and how far the wave has travelled from the source of the sound.
- Amplitude is the measure of the size of a sound wave. The energy that caused the wave to start will determine its value. Waves with a larger amplitude produce louder sounds because they have more energy and intensity.
- The energy associated with sound waves spreads out further away from the source as they travel. The region that the wave covers grows as the wave's separation from its origin or source does, distributing the same amount of energy over a bigger area. The sound gradually loses its ferocity and volume. This is the reason why even a strong sound becomes less audible the further we get from its source.
- The intensity of sound, commonly known as the power of sound waves, is measured in decibels. Compared to other measuring scales, decibels (dB) are unique. While many standard measuring devices and scales are linear, the decibel scale is logarithmic. If a sound is 80 decibels and we increase it by 10, according to the logarithmic decibel scale, the sound will be 10 times more strong and we will perceive it twice as loud. Decibels are a unit used to measure how loud a sound is.
Hence, loudness and intensity of sound wave determines how loud or soft is the sound.
Note: The subjective evaluation of sound pressure is called loudness. The perceived loudness of sound follows a logarithmic function rather than being proportional to energy intensity. The relative loudness of sounds is expressed using a decibel unit in a range from zero to around 100 dB, which is close to the volume that most people find uncomfortable to hear.
Complete step by step solution:
- The loudness of Sound refers to how loud or soft a sound seems to a listener. The loudness of sound is determined by the help intensity of the sound waves. The intensity of a sound wave is a measure of the amount of energy associated with a sound wave.
- The intensity of a sound wave is determined by two factors: the amplitude of the sound wave and how far the wave has travelled from the source of the sound.
- Amplitude is the measure of the size of a sound wave. The energy that caused the wave to start will determine its value. Waves with a larger amplitude produce louder sounds because they have more energy and intensity.
- The energy associated with sound waves spreads out further away from the source as they travel. The region that the wave covers grows as the wave's separation from its origin or source does, distributing the same amount of energy over a bigger area. The sound gradually loses its ferocity and volume. This is the reason why even a strong sound becomes less audible the further we get from its source.
- The intensity of sound, commonly known as the power of sound waves, is measured in decibels. Compared to other measuring scales, decibels (dB) are unique. While many standard measuring devices and scales are linear, the decibel scale is logarithmic. If a sound is 80 decibels and we increase it by 10, according to the logarithmic decibel scale, the sound will be 10 times more strong and we will perceive it twice as loud. Decibels are a unit used to measure how loud a sound is.
Hence, loudness and intensity of sound wave determines how loud or soft is the sound.
Note: The subjective evaluation of sound pressure is called loudness. The perceived loudness of sound follows a logarithmic function rather than being proportional to energy intensity. The relative loudness of sounds is expressed using a decibel unit in a range from zero to around 100 dB, which is close to the volume that most people find uncomfortable to hear.
Recently Updated Pages
Uniform Acceleration - Definition, Equation, Examples, and FAQs

JEE Main 2021 July 25 Shift 1 Question Paper with Answer Key

JEE Main 2021 July 22 Shift 2 Question Paper with Answer Key

JEE Atomic Structure and Chemical Bonding important Concepts and Tips

JEE Amino Acids and Peptides Important Concepts and Tips for Exam Preparation

JEE Electricity and Magnetism Important Concepts and Tips for Exam Preparation

Trending doubts
JEE Main 2025 Session 2: Application Form (Out), Exam Dates (Released), Eligibility, & More

Atomic Structure - Electrons, Protons, Neutrons and Atomic Models

Displacement-Time Graph and Velocity-Time Graph for JEE

JEE Main 2025: Derivation of Equation of Trajectory in Physics

Learn About Angle Of Deviation In Prism: JEE Main Physics 2025

Electric Field Due to Uniformly Charged Ring for JEE Main 2025 - Formula and Derivation

Other Pages
JEE Advanced Marks vs Ranks 2025: Understanding Category-wise Qualifying Marks and Previous Year Cut-offs

NCERT Solutions for Class 11 Physics Chapter 1 Units and Measurements

Units and Measurements Class 11 Notes: CBSE Physics Chapter 1

NCERT Solutions for Class 11 Physics Chapter 2 Motion In A Straight Line

Motion in a Straight Line Class 11 Notes: CBSE Physics Chapter 2

Important Questions for CBSE Class 11 Physics Chapter 1 - Units and Measurement
