Intensity level \( 200 \mathrm{~cm} \) from a source of sound is \(...

Channel:
PW Solutions
Subscribers:
447,000
Published on ● Video Link: https://www.youtube.com/watch?v=6QEnQ9uqDew


Duration: 3:27
19 views
0

Intensity level \( 200 \mathrm{~cm} \) from a source of sound is \( 80 \mathrm{~dB} \). If there is no loss of acoustic power in air and intensity of
\( \mathrm{P} \) threshold hearing is \( 10^{-12} \mathrm{Wm}^{-2} \) then, what is the intensity

W level at a distance of \( 4000 \mathrm{~cm} \) from source
(a) Zero
(b) \( 54 \mathrm{~dB} \)
(c) \( 64 \mathrm{~dB} \)
(d) \( 44 \mathrm{~dB} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-02-13State what happens when halogens \( (\mathrm{X}=\mathrm{Cl} / \math...
2023-02-13Fill in the blanks If \( \mathrm{A} \) is a symmetric matrix, then ...
2023-02-13Figure shows the relationship between tensile stress and \( \mathrm...
2023-02-13Let \( f(x)=\left\{\begin{array}{cc}\frac{x^{4}-5 x^{2}+4}{|(x-1)(x...
2023-02-13\( P Q \) and \( P R \) are two tangents to a circle with centre \(...
2023-02-13(a) \( 5 \mathrm{~cm} \) , if \( A B=12 \mathrm{~cm}, B C=8 \mathrm...
2023-02-13Answer the following with relevant reason. \( \mathrm{P} \) Why hel...
2023-02-13Answer the following with relevant reason. (i) The boiling points o...
2023-02-13Read the assertion and reason carefully to mark the correct option ...
2023-02-13Consider two identical Top view Side view circular loops of same ra...
2023-02-13Intensity level \( 200 \mathrm{~cm} \) from a source of sound is \(...
2023-02-13Arectangularloopcarryinga current \( I \) is situated near a long s...
2023-02-13A stone of mass \( 20 \mathrm{~g} \) is projected from a rubber catapult \( \mathrm{P} \) of len...
2023-02-13As shown schematically in the figure, two vessels contain water solutions (at temperature T) of ...
2023-02-13Fill in the blanks The product of any matrix by the scalar is the n...
2023-02-13On using elementary column operations \( \mathrm{C}_{2} \rightarrow...
2023-02-13\( D E \) and \( D F \) are tangents from an external point \( D \)...
2023-02-13A man grows into a giant such that his linear dimensions increase b...
2023-02-13A cubical box is completely filled with mass \( m \) of a liquid and is given horizontal acceler...
2023-02-13Why are halogens coloured? P W
2023-02-13If \( f(x)=(x+1)^{\cot x} \) be continuous at \( x=0 \), then \( f(...


Tags:
pw