An open organ pipe of length and a closed organ pipe of the same length are sounded…

PHYSICS · Subjective · A Level · Physics · Waves · Waves

Problem

An open organ pipe of length

0.85\,\text{m}

and a closed organ pipe of the same length are sounded together at a room temperature of

20^{\circ}\text{C}

. The speed of sound in air is

343\,\text{m\,s}^{-1}

20^{\circ}\text{C}

and

349\,\text{m\,s}^{-1}

30^{\circ}\text{C}

. After the room is heated to

30^{\circ}\text{C}

, determine the time interval between successive beat maxima heard due to their fundamental modes.