UPSC Exam > UPSC Questions > What is the unit of loudness?a) Belb) Phonc)...
Start Learning for Free
What is the unit of loudness?
- a)Bel
- b)Phon
- c)Decibel
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the abo...
The sensation of a sound perceived in an ear is measured by another term called loudness which depends on intensity of sound and sensitiveness of the ear. Unit of loudness is bel. A practical unit of loudness is decibel (dB) which is 1/10th of bel. Another unit of loudness is phon.
Free Test
FREE
| Start Free Test |
Community Answer
What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the abo...
Unit of Loudness
Bel
- The Bel is a unit of measurement for the intensity of sound. It is named after Alexander Graham Bell.
- However, the Bel is rarely used in practice because it is a large unit. Instead, the decibel (dB), which is equal to one-tenth of a Bel, is commonly used.
Phon
- The Phon is a unit of loudness level for pure tones. It is a subjective unit of loudness perception.
- The Phon is used to measure the loudness of sound as perceived by the human ear.
Decibel
- The Decibel (dB) is the most commonly used unit for measuring the intensity of sound.
- It is a logarithmic unit that expresses the ratio of a physical quantity relative to a specified or implied reference level.
- The Decibel scale is commonly used in acoustics, electronics, and telecommunications to quantify sound levels, power levels, and other quantities.
All of the Above
- All three units - Bel, Phon, and Decibel - are related to the measurement of loudness in some way.
- While the Bel is rarely used in practice, the Phon and Decibel are commonly used in the field of sound measurement and acoustics.
- Therefore, the correct answer to the question is "All of the above."
Bel
- The Bel is a unit of measurement for the intensity of sound. It is named after Alexander Graham Bell.
- However, the Bel is rarely used in practice because it is a large unit. Instead, the decibel (dB), which is equal to one-tenth of a Bel, is commonly used.
Phon
- The Phon is a unit of loudness level for pure tones. It is a subjective unit of loudness perception.
- The Phon is used to measure the loudness of sound as perceived by the human ear.
Decibel
- The Decibel (dB) is the most commonly used unit for measuring the intensity of sound.
- It is a logarithmic unit that expresses the ratio of a physical quantity relative to a specified or implied reference level.
- The Decibel scale is commonly used in acoustics, electronics, and telecommunications to quantify sound levels, power levels, and other quantities.
All of the Above
- All three units - Bel, Phon, and Decibel - are related to the measurement of loudness in some way.
- While the Bel is rarely used in practice, the Phon and Decibel are commonly used in the field of sound measurement and acoustics.
- Therefore, the correct answer to the question is "All of the above."
|
Explore Courses for UPSC exam
|
|
Top Courses for UPSCView all
What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the aboveCorrect answer is option 'D'. Can you explain this answer?
Question Description
What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the aboveCorrect answer is option 'D'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the aboveCorrect answer is option 'D'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the aboveCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the aboveCorrect answer is option 'D'. Can you explain this answer?.
Solutions for What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the aboveCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the aboveCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the aboveCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the aboveCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the aboveCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice What is the unit of loudness?a) Belb) Phonc) Decibeld) All of the aboveCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice UPSC tests.
|
|
Explore Courses for UPSC exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup