Q. 1

A steel tube of length 1.00 m is struck at one end. A person with his ear close to the other end hears the sound of the blow twice, one travelling through the body of the tube and the other through the air in the tube. Find the time gap between the two hearings. Use the table in the text for speeds of sounds in various substances. .

Answer :

Given:
Velocity of sound in air
= 330 m/s
Velocity of sound through the steel tube
= 5200 m/s
Here, Length of the steel tube
S = 1 m


As we know,



= and


Where, is the time taken by the sound in air.
is the time taken by the sound in steel tube.


Therefore,


Required time gap





Hence, the time gap between two hearings is 2.75 ms


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Standing WaveStanding WaveStanding Wave44 mins
Sound WaveSound WaveSound Wave43 mins
Resonance | Master important conceptsResonance | Master important conceptsResonance | Master important concepts40 mins
String wave - 01 | Mastering important conceptsString wave - 01 | Mastering important conceptsString wave - 01 | Mastering important concepts52 mins
Energy & Power of a WaveEnergy & Power of a WaveEnergy & Power of a Wave60 mins
Doppler's Effect | Master important conceptsDoppler's Effect | Master important conceptsDoppler's Effect | Master important concepts50 mins
String wave - 02 | Mastering important conceptsString wave - 02 | Mastering important conceptsString wave - 02 | Mastering important concepts31 mins
Transmitted & Reflected WavesTransmitted & Reflected WavesTransmitted & Reflected Waves39 mins
String WaveString WaveString Wave51 mins
Sound Wave - 01 | Mastering important conceptsSound Wave - 01 | Mastering important conceptsSound Wave - 01 | Mastering important concepts52 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :