Two cats in a house mew at each other with sound intensities \( 5 \times 10^{-9} \mathrm{Wm}^{-2...

Channel:
PW Solutions
Subscribers:
451,000
Published on ● Video Link: https://www.youtube.com/watch?v=o1o2xblcMYo


Duration: 3:19
2 views
0

Two cats in a house mew at each other with sound intensities \( 5 \times 10^{-9} \mathrm{Wm}^{-2} \) and \( 9 \times 10^{-6} \)
\( \mathrm{P} \) \( \mathrm{Wm}^{-2} \). By how many decibels is the louder

W. sound above the other ?
(1) \( \sim 13 \mathrm{~dB} \)
(2) \( \sim 23 \mathrm{~dB} \)
(3) \( \sim 33 \mathrm{~dB} \)
(4) \( \sim 43 \mathrm{~dB} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-01-16The equation of displacement due to a sound wave is \( s=s_{0} \sin ^{2}(\omega t-k x) \). If th...
2023-01-16A heavy rope is suspended from a rigid support. A transverse wave pulse is set up at the lower \...
2023-01-16Figure shows a sinusoidal plot which describe the wave. Select the correct equation :- \( \mathr...
2023-01-16A narrow sound pulse (for a example a short pip by a whistle) is sent across a medium then : P (...
2023-01-16A travelling wave is partly reflected and partly transmitted from a rigid boundary. Let \( a_{i}...
2023-01-16A wire of density \( 9 \times 10^{3} \mathrm{~kg} / \mathrm{m}^{3} \) is stretched P between two...
2023-01-16Gluconeogenesis, proteolysis in body is promoted by P (1) \( \mathrm{GH} \) W) (2) TSH (3) Cortisol
2023-01-16An organ pipe filled with oxygen gas at \( 47^{\circ} \mathrm{C} \) resonates in its fundamental...
2023-01-16If the threshold of hearing is assumed to be the reference \( (0 \mathrm{~dB}) \), then the thre...
2023-01-16A pulse on a string is shown in the figure. \( P \) is particle of the string. Then state which ...
2023-01-16Two cats in a house mew at each other with sound intensities \( 5 \times 10^{-9} \mathrm{Wm}^{-2...
2023-01-16\( \mathrm{P}, \mathrm{Q} \) and \( \mathrm{R} \) are three particles of a medium which lie on t...
2023-01-16A bird is singing on a tree and a man is hearing at a distance \( r \) from the bird. Calculat...
2023-01-16Curve \( y-x \) at an instant for a wave travelling along \( \mathrm{x} \)-axis on a string is...
2023-01-16Select correct order among following : (A) ( \( \mathrm{C}=\mathrm{C} \) rotational energy barie...
2023-01-16A transverse wave in a medium is described by the equation \( \mathrm{y}=\mathrm{A} \sin ^{2}(\o...
2023-01-16A transverse wave is travelling along a stretched string from right to left. The figure shown \(...
2023-01-16A transverse harmonic wave on a string is \( \mathrm{P} \) described by \( y=3 \sin \left[36 t+0...
2023-01-16Transverse mechanical wave are not possible in liquid. Because :- \( \mathrm{P} \) (1) liquid ha...
2023-01-16Two mechanical waves, \( y_{1}=2 \sin 2 \pi(50 t-2 x) \) \( \& y_{2}=4 \sin 2 \pi(a x+100 t) \) ...
2023-01-16When an ultrasonic wave travels from air into water \( \mathrm{P} \) (1) the wave bends away fro...