arrow
arrow
arrow
A 20 dB increase in noise level represents an enhancement in intensity of sound by a factor of
Question



A 20 dB increase in noise level represents an enhancement in intensity of sound by a factor of

A.

2

B.

5

C.

100

D.

20

Correct option is C


A decibel (dB) is a logarithmic unit used to express sound intensity. The formula for calculating the ratio of sound intensity levels in decibels is:

Information Booster Understanding Decibels and Sound Intensity:
· Decibels (dB): A logarithmic unit to measure sound levels, used to quantify the relative difference in sound power or intensity.
· Sound Intensity Relationship: Every increase of 10 dB represents a tenfold increase in intensity. Thus, 20 dB corresponds to
· Human Perception: Although sound intensity increases by a factor of 100, our ears perceive it as about four times louder due to the logarithmic nature of sound perception.

Free Tests

Free
Must Attempt

Basics of Education: Pedagogy, Andragogy, and Hutagogy

languageIcon English
  • pdpQsnIcon10 Questions
  • pdpsheetsIcon20 Marks
  • timerIcon12 Mins
languageIcon English
Free
Must Attempt

UGC NET Paper 1 Mock Test 1

languageIcon English
  • pdpQsnIcon50 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon60 Mins
languageIcon English
Free
Must Attempt

Basics of Education: Pedagogy, Andragogy, and Hutagogy

languageIcon English
  • pdpQsnIcon10 Questions
  • pdpsheetsIcon20 Marks
  • timerIcon12 Mins
languageIcon English

Similar Questions

test-prime-package

Access ‘UGC NET December’ Mock Tests with

  • 60000+ Mocks and Previous Year Papers
  • Unlimited Re-Attempts
  • Personalised Report Card
  • 500% Refund on Final Selection
  • Largest Community
students-icon
354k+ students have already unlocked exclusive benefits with Test Prime!
Our Plans
Monthsup-arrow