Question

Problem 22

Answer 1

Given information

Given:

In this question, we need to see if we can use a knife blade to touch a string that is vibrating as a standing wave in three loops without interrupting the motion.

Step-by-step explanation

Step 1.

There are nodal points or nodes in a standing wave, which are places where there is no vibration. A node is a point that does not move as transverse waves travel through it, where all waves cancel or pass through without moving any particles, and which may be touched with a knife blade without disrupting the motion.

The string should have four nodes since it vibrates in three loops (two at the ends, and two in between).