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A wave undergoes reflection from a rigid boundary. One of its characteristic parameters that changes is (a) frequency (b) phase (c) velocity (d) wavelength

A wave undergoes reflection from a rigid boundary. One of its characteristic parameters that changes is
(a) frequency
(b) phase
(c) velocity
(d) wavelength

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3 Answers

Aziz Alam IIT Roorkee
askIITians Faculty 232 Points
9 years ago
When the wave undergoes reflection against a rigid body it results into change of shape so as to maintain the boundary condition at the wall. i.e. the particle at the boundary remains at rest.
Due to this there is change of phase.
Frequency, wavelength & velocity remains unchanged.
sopan kadam
13 Points
7 years ago
 
A wave undergoes reflection from a rigid boundary. One of its characteristic parameters that changes is phase. it is right, phase changes.
Rakesh yadav
11 Points
6 years ago
It can also be understood, consider wave as a ray which is about to incident on the rigid wall and since it is coming from upper part so after incident it will be reflect in lower part now replace ray by wave now wave is coming from upper part so after reflection it will move in lower.

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