Wave Pulse Reflection and Transmission in Spring Junctions

AI Thread Summary
In the discussion on wave pulse reflection and transmission in spring junctions, the participants analyze various statements regarding the behavior of pulses traveling between a heavy and a light spring. Statement A is deemed correct, indicating that the transmitted pulse from the heavy spring travels slower than the reflected pulse. Statement B is also correct, as reflected pulses only occur when the springs are not identical. Statement C is incorrect; the reflected pulse from the heavy spring is not inverted. Statements D and E are correct, confirming that the transmitted pulse from the light spring is not inverted, while the reflected pulse is also not inverted. The analysis concludes with a consensus on the correctness of the evaluated statements.
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Homework Statement


Two springs are connected, one is a heavy spring and the other is a light spring. A pulse is traveling down spring A, towards a junction with spring B. Which of the following statements are correct/incorrect.

A. If spring A is the heavy spring then the transmitted pulse will travel slower than reflected pulse.
B. The only case in which there will be no reflected pulse is when the springs are identical.
C. If spring A is the heavy spring then the reflected pulse will be inverted.
D. If spring A is the light spring then the transmitted pulse will not be inverted.
E. If spring A is the light spring then the reflected pulse will not be inverted.


The Attempt at a Solution


A. Correct
B. Correct
C. Incorrect
D. Correct
E. Incorrect
 
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By lighter, I assume mass/unit length is lesser. Does your answer to A tally with the formula for the speed of sound? The tension in both springs is the same.
 
Ohh yea no that should be incorrect. Are the rest of them right?
 
Seems to be all right.
 

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