Home
Class 12
BIOLOGY
The intensity levels of whispering noise...

The intensity levels of whispering noise is:

A

10 – 15 dB

B

20 – 40 dB

C

45 – 50 dB

D

50 – 55 dB

Text Solution

Verified by Experts

The correct Answer is:
B
* 10 -15 dB - Almost inavadible - a leaf falling
* 20 - 40dB - Very quiet - whispering
* 45 -50 dB Limited sound - Refrigerator
* 50-55 dB - Limited sound - Coffee maked
Promotional Banner

Similar Questions

Explore conceptually related problems

Define noise.

The intensity level of a sound of intensity of 10^(-12)wat t//cm^(2) is 40 dB. What is the zero level of intensity ?

(a) What is the threshold of hearing and what is the treshold of pain in the context of hearing ? How are these related to each other ? (b) What are the value of intensity level for (i) Soft whisper (ii) Quiet library (iii) Normal conversation (iv) Rock band (with amplifiers) (v) Jet plane take off (vi) Rocket launch ?

Find the intensity level of a sound wave in decibles of a sound wave whose intensity is 10^(-10) cm^(-2) . Take zero level of intensity = 10^(-12)Wm^(-2) .

The intensity level of two sounds are 100 dB and 50 dB. What is the ratio of their intensities?

Answer true or false The loudness level of a whisper is around 70 decibe1s.

The zero level of intensity of a sound is 10^(-16) wat t //cm^(2) . Calculate intensity level of a sound of intensity 10^(-7)wat t //m^(2) .

Find the intensity level of a sound wave that has an intensity of 10^(-5) Wm^(-2) .

Calculate the change in intensity level when the intensity of sound increases by 10^(6) times its original intensity.