A pipe is closed at one end

PHYSICS · Subjective · CBSE · Physics · Waves · Waves

Problem

1.20\,\text{m}

pipe is closed at one end. The speed of sound in air is

343\,\text{m/s}

. Which of the following driving frequencies will produce a resonance in the pipe:

70\,\text{Hz}

140\,\text{Hz}

210\,\text{Hz}

280\,\text{Hz}

? List all that apply.