Two springs are connected, one is a heavy spring and the other is a light spring

Question

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

If spring A is the heavy spring then the reflected pulse will travel slower than transmitted pulse.
If spring A is the light spring then the transmitted pulse will travel slower than reflected pulse.
If spring A is the heavy spring then the transmitted pulse will be inverted.
The only case in which there will be no reflected pulse is when the springs are identical.
If spring A is the light spring then the reflected pulse will travel slower than transmitted pulse.

Explanation / Answer

1.correct

2.correct

3.incorrect

4.correct

5.incorrect

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