0

Guest

Courses New

If loudness of sound of a barking dog at 4 m is 40dB ,then loudness at 8m from dog is (assume dog to be point of source) approx.?

If loudness of sound of a barking dog at 4 m is 40dB ,then loudness at 8m from dog is (assume dog to be point of source) approx.?

Grade:

1 Answers

Arun
25758 Points
3 years ago
loudness of sound is inversely proportional to the square of the distance.
Lesser the  distance between the source and the listener, greater is the loudness of the sound heard by the listener and vice -versa.
 
let new loudness = x
 
hence
 
x/40 = 16/64
 
x = 640/64
 
x = 10dB

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

Other Related Questions on AIIMS MBBS

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More