Source A excites the next higher frequency mode of vibration beyond the fundamen

Question

Source A excites the next higher frequency mode of vibration beyond the fundamental (first overtone) in an air column of length L with one end closed. Source B excites the second higher mode of vibration beyond the fundamental (second overtone) in an air column of length L with both ends open. What is the ration of A's frequency to B's frequency? 1:1 1:2 2:1 2:3 3:2 1:3 A stretched string, 1.00 m long, has a fundamental frequency of 500 Hz. What is the frequency of the first overtone? 250 Hz 500 Hz 167 Hz 1000 Hz 1500 Hz Not enough information A long vertical tube contains water whose level can be varied. A tuning fork of frequency 300 Hz is struck so that it vibrates, and is held over the top of the tube. The water level is lowered until a resonance is heard. The level is then lowered farther until the next resonance is heard. The difference between the two levels is measured to be 50 cm. What was the speed of sound at air in this experiment? 150 m/s 290 m/s 300 m/s 310 m/s 340 m/s

Explanation / Answer

Number 9

Choice D

Number 10

Choice D

Number 11

Choice C

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