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 (20) of diffracted sound waves when the speed of sound in air is 340 m/sec. 167° a. b. 83.6° 19.5° c. d. 41.8° e. 0.11°

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