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.

1. The only case in which there will be no reflected pulse is when the springs are identical.

2. If spring A is the heavy spring then the transmitted pulse will be inverted.

3. If spring A is the light spring then the reflected pulse will not be inverted.

4. If spring A is the light spring then the transmitted pulse will be inverted.

5. If spring A is the heavy spring then the reflected pulse will not be inverted

Explanation / Answer

1) Correct

2) Incorrect

3) Incorrect

4) Correct

5) Correct

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