Physics Wave Optics Level: Misc Level

Diffraction occurs for all types of waves, including sound waves.High frequency sound from a distant source with a wavelength 9.00 cm passes through a narrow slit 12.0 cm wide.A microphone is placed 40.0 cm directly in front of the center of the slit, corresponding to the O in the attachment. The microphone is then moved in a direction perpendicular to the line from the center of the slit to the point O. At what distances from O will the intensity detected by the microphone be zero.