List of top Physics Questions on Standing Waves and Resonance

ध्वनि तरंगों के लिए, यदि एक खुले सिरे वाली नली के 5th हार्मोनिक के लिए प्रतिनोद (nodes) की संख्या \(n\) है और उसी नली के एक सिरे बंद तथा दूसरे सिरे खुले होने पर 9th हार्मोनिक के लिए प्रतिनोदों की संख्या \(m\) है, तो \(\dfrac{n}{m}\) है :

For sound waves, if the number of nodes for the 5th harmonic of an open-ended pipe is \(n\) and that for the 9th harmonic of the same pipe with one of its ends closed is \(m\), the ratio \(n/m\) is:

A tuning fork is used to produce resonance in a glass tube. The length of the air column in this tube can be adjusted by a variable piston. At room temperature of 27°C two successive resonances are produced at 20 cm and 73 cm of column length. If the frequency of the tuning fork is 320 Hz, the velocity of sound in air at 27°C is