A single wave pulse is sent along a thick rope that's tied to a thin rope, which in turn is attached to a wall. Reflection of the wave will occur at both points A (where the thick rope is attached to the thin rope) & point B (where the thin rope is attached to the wall)

Which point will the reflected wave be inverted & which point will it be erect.

At point A it will remain erect because there is free movement, at point B it will invert because it's attached to a solid perpendicular surface.

Is that correct?

Thanks :)

yes

Thank you :)

Yes, your understanding is correct. When a wave pulse reaches a fixed end, such as at point B where the thin rope is attached to the wall, the wave is reflected and inverted. This means that the wave pulse will change direction upon reflection and appear upside down compared to its original form.

On the other hand, at point A where the thick rope is attached to the thin rope, the wave pulse will be reflected without inversion. This means that the wave pulse will change direction upon reflection but will retain its original orientation or be erect.

So, to summarize, the wave pulse will be inverted at point B (where the thin rope is attached to the wall) and will be erect at point A (where the thick rope is attached to the thin rope).

I hope this clarifies your query. If you have any more questions, feel free to ask!

Yes, you are correct! When a wave pulse travels from a thick rope to a thin rope, there will be a reflection at the interface between the two ropes. Similarly, when the wave pulse reaches the end of the thin rope and encounters the wall, there will be another reflection.

At point A, where the thick rope is attached to the thin rope, the reflection of the wave will be erect. This is because there is partial reflection and partial transmission at the interface, but as the thin rope is also free to move, the reflected portion of the wave will not be inverted.

At point B, where the thin rope is attached to the wall, the reflection of the wave will be inverted. This is because the wall acts as a fixed boundary and does not allow any movement of the rope. The incident wave pulse will be completely reflected and inverted upon reaching this boundary.

So your understanding is correct! At point A, the reflected wave will be erect, and at point B, the reflected wave will be inverted.