Diffraction occurs for all types of waves, including sound waves.High - frequenc

Question

Diffraction occurs for all types of waves, including sound waves.High - frequency sound from a distant source with wavelength8.45 cm passes through a narrow slit12.5 cm wide. A microphone is placed48.0 cm directly in front of thecenter of the slit, corresponding to point O in thefollowing figure. The microphone is then moved in a directionperpendicular to the line from the center of the slit to pointO. At what distances from O will the intensitydetected by the microphone be zero? + - 1 For the two strips shown, the path difference to P is (a/2) sin theta. When (a/2) sin theta = 1/2, the light cancels at P. This is true for the whole slit, so P represents a dark fringe.

Explanation / Answer

sin(theta) = linda/(a arcsin(linda/a) = theta Xtan(theta)=y

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

---