H2P-625
Measuring wavelength with a grating
H2 Physics · JC 2 · Medium · Measuring wavelength with a grating
Sound from a loudspeaker of frequency 600 Hz reflects off a wall and forms a stationary wave in air. A microphone moved along the line from the speaker to the wall detects adjacent intensity maxima 0.29 m apart. Calculate the speed of sound in air.
- 174 m s⁻¹
- 290 m s⁻¹
- 348 m s⁻¹
- 696 m s⁻¹
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