Chapter 46 of 2363 min read

Superposition, standing waves, beats

Why this is asked: Beat frequency is simply the difference of the two frequencies, never their sum or average — and a standing wave's nodes and antinodes stay fixed in space, unlike a travelling wave where every point oscillates with equal amplitude.

This chapter is part of a paid pack

A sample of the book is free to read — the rest, including this chapter, unlocks with full access.

See pricing

Test yourself

•A pipe open at both ends has a fundamental frequency $f$ in air. The pipe is now dipped vertically in a water drum to half of its length. The fundamental frequency of the air column is now equal to:

Open this in the full syllabus view · Physics

ShareWhatsApp Telegram