Umakant Kondapure, Collin Fernandes, Nipun Bhatia, Vikram Bathula and, Ketki Deshpande Solutions for Chapter: Stationary Waves, Exercise 1: Classical Thinking

There is a large difference between the frequencies of external periodic force and natural frequency of a body. The body will

Resonant vibration is a special case of

Resonance occurs when

Above the resonant frequency,

In resonance,

A length of $30 \mathrm{cm}$ of a steel wire on a guitar gives a note of $300 \mathrm{Hz}$ when it is plucked. What length of this wire will give a note of $400 \mathrm{Hz}$, if the tension does not change?

An empty vessel is partially filled with water, then the frequency of vibration of air column in the vessel

Assertion: The fundamental frequency of vibration of an open organ pipe remains same if the radius of the pipe is doubled.

Reason: Frequency of vibration of an open organ pipe is independent of the radius of pipe.