Physics - Wave on String Question with Solution | TestHub
Assertion (A): When a transverse wave travels from a lighter string to a denser string, part of the wave is reflected and part is transmitted. The reflected wave is inverted.
Reason (R): The boundary between the lighter and denser string acts as a fixed end for the incident wave, causing a phase reversal upon reflection.
Options:
Answer:
Solution:
When a transverse wave encounters a boundary between two media, reflection and transmission occur. If the wave travels from a lighter (less dense) string to a denser string, the denser string acts like a rigid support or a fixed end for the incident wave.
At a fixed end, a transverse wave undergoes a phase change of (or ) upon reflection, which means the reflected wave is inverted. Both the assertion and the reason are true, and the reason correctly explains the inversion of the reflected wave.
