Progressive and stationary waves

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Question 28

Medium

The diagram shows a stationary wave formed on a stretched string of a musical instrument at one instant in time. $P$ , $Q\,$ and $R\,$ are three points along the string. Point $P\,$ is located at the antinode of the first loop, while $Q\,$ and $R\,$ are positioned symmetrically in the second and third loops respectively, at the same distance from their nearest nodes.

Stationary wave on a string with points P, Q, and R

Which row in the table correctly describes the phase and amplitude relationships between these points?

Phase relationship: $P$ is in phase with $R$ ; Amplitude relationship: $Q$ has the same amplitude as $R$

Phase relationship: $P$ is in phase with $R$ ; Amplitude relationship: $P$ has a smaller amplitude than $Q$

Phase relationship: $P$ is in antiphase with $R$ ; Amplitude relationship: $Q$ has the same amplitude as $R$

Phase relationship: $P$ is in antiphase with $R$ ; Amplitude relationship: $P$ has a smaller amplitude than $Q$

Progressive and stationary waves

Question 28

Progressive and stationary waves Questions

Progressive and stationary waves

Question 28

Progressive and stationary waves Questions