WHen particular... When particular string is driven up and down at a frequency o
ID: 2278200 • Letter: W
Question
WHen particular...
When particular string is driven up and down at a frequency of 60.0 Hz, a wave with wavelength 28.0 cm is created. What wavelength waves will be created when the same string is driven up and down at 150.0 Hz? Last Answer: 70.0 cm Not yet correct, tries 1/4 This string is 2.6 m long and is held with a tension of 107.0 N, what is the mass of the string? A round speaker head has a diameter of 18.6 cm. It produces a sound with frequency 2620.0 Hz. What is the wavelength of this sound? What is the diffraction angle as the sound emerges from the speaker?Explanation / Answer
6. wavelength will be = 11.2 cm since product of wavelength and frequency should remain constant.
7. mass of string= 985 grams because speed = 0.28* 60 = 16.8 = square root (tension* length/ mass)
8. wavelength = 13.09 cm since wavelength = speed(343)/ frequency(2620)
9. Diffraction angle= 59.15 because, Diameter of speaker x sin (diffraction angle) = 1.22 x wavelength
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