A car moving at a velocity of \( 17 \mathrm{~ms}^{-1} \) towards an...

Channel:
PW Solutions
Subscribers:
447,000
Published on ● Video Link: https://www.youtube.com/watch?v=8NeszCpAw9c


Duration: 1:55
10 views
0

A car moving at a velocity of \( 17 \mathrm{~ms}^{-1} \) towards an approaching bus that blows a horn at a frequency of \( 640 \mathrm{~Hz} \) on a straight
\( \mathrm{P} \) track. The frequency of this horn appears to be \( 680 \mathrm{~Hz} \) to the car driver. If the velocity of sound in air is \( 340 \mathrm{~ms}^{-1} \), then
W velocity of the approaching bus is
[WB-JEE 2013]
(a) \( 2 \mathrm{~ms}^{-1} \)
(b) \( 4 m s^{-1} \)
(d) \( 10 \mathrm{~ms}^{-1} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-02-13Answer each of the following questions in one word or one sentence ...
2023-02-13The unit of potential gradient is P W a. \( { }^{*} \) Volt b. Volt...
2023-02-13A body is moving in a circular path with a constant speed. It has (1) A constant velocity P (2) ...
2023-02-13Two equal circles touch each other externally at \( C \) and \( A B...
2023-02-13The length of the potentiometer wire is kept larger so that the \( ...
2023-02-13\[ \mathrm{CH}_{3}-\mathrm{CH}=\mathrm{CH}_{2}+ \] \( \stackrel{\te...
2023-02-13Answer each of the following questions in one word or one sentence ...
2023-02-13A source of sound \( S \) emitting waves of frequency \( 100 \mathr...
2023-02-13A train whistling at constant frequency is moving towards a station...
2023-02-13If four sides of a quadrilateral \( A B C D \) are tangential to a ...
2023-02-13A car moving at a velocity of \( 17 \mathrm{~ms}^{-1} \) towards an...
2023-02-13Fuse wire is a wire of: (a) Low resistance and low melting point P ...
2023-02-13Earth exerts a gravitational force on the Moon, keeping it in its o...
2023-02-13A small source of sound moves on a circle as shown in the figure an...
2023-02-13\( \mathrm{H}_{3} \mathrm{C}_{3} \mathrm{C} \mathrm{C}=\mathrm{CH}_...
2023-02-13How does the magnitude of the gravitational P force with which the ...
2023-02-13Total number of possible matrices of order \( 3 \times 3 \) with ea...
2023-02-13A cell has an emf \( 1.5 \mathrm{~V} \). When connected across an e...
2023-02-13For changing an ammeter into a voltmeter, we should connect \( \mat...
2023-02-13A tangent \( P Q \) at a point \( P \) of a circle of radius \( 5 \...
2023-02-13The minimum bond length will be observed in :- (1) \( \mathrm{O}_{2...


Tags:
pw