Question

if you are seated in the middle row, how much time elapses between a sound from the stage reaching your ear directly and the same sound reaching your ear after reflecting from the back wall? the speed of sound in the air is 343 m/s .

Answer 1

Assuming the theater is rectangular, the time elapsed between the sound reaching the ear directly and the sound reflecting off the back wall can be calculated using the equation T = 2d / v, where T is the time elapsed, d is the distance between the stage and the back wall, and v is the speed of sound in the air (343 m/s).

For example, if the distance between the stage and the back wall is 10 meters, the time elapsed would be:

T = 2d / v = 2 * 10 / 343 = 0.058 seconds