First slide

Stationary waves

Question

In a stationary wave, all particles are

Easy

A

At rest at the same time twice in every period of oscillation
B

At rest at the same time only once in every period of oscillation
C

Never at rest at the same time
D

Never at rest at all

Solution

As the particles come to the end position twice in an oscillation the particles come to rest twice in a loop of stationary waves.

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