Plane waves of ultrasound, f = 51.0 kHz, impinge on a flat plane with a 1.00-cm-wide slit. What is the total angular width (2?) of diffracted sound waves when the speed of sound in air is 340 m/s.
A. 167°
B. 83.6°
C. 19.5°
D. 41.8°
E. 0.11°
Answer: B
Physics & Space Science
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