9. The diagram below represents two waves traveling 14. The diagram below represents a transverse wave simultaneously in the same medium. At which of the traveling in a string. given points will maximum constructive interference occur? A) A B) B C) C D) D 10.Two wave sources operating in phase in the same medium produce the circular wave patterns shown in the diagram below. The solid lines represent wave Which two labeled points are 180 out of phase? crests and the dashed lines represent wave troughs. A) A and D B) B and F C) D and F D) D and H 15. The diagram below shows a standing wave in a string clamped at each end. Which point is at a position of maximum destructive interference? A) A B) B C) C D) D 11. Two speakers, Si and S2, operating in phase in the same medium produce the circular wave patterns shown in the diagram below. What is the total number of nodes and antinodes in the standing wave? A) 3 nodes and 2 antinodes Key B) 2 nodes and 3 antinodes - Wave crest C) 5 nodes and 4 antinodes - - - Wave trough D) 4 nodes and 5 antinodes 16. The diagram below represents a periodic wave traveling through a uniform medium. At which two points is constructive interference -6.0 m- occurring? A) A and B B) A and D C) B and C D) B and D 12. Astronauts traveling toward Earth in a fast-moving spacecraft receive a radio signal from an antenna on If the frequency of the wave is 2.0 hertz, the speed of Earth. Compared to the frequency and wavelength of the wave is the radio signal emitted from the antenna, the radio A) 6.0 m/s B) 2.0 m/s signal received by the astronauts has a C) 8.0 m/s D) 4.0 m/s A) lower frequency and a shorter wavelength B) lower frequency and a longer wavelength 18. A wave generator located 4.0 meters from a C) higher frequency and a shorter wavelength reflecting wall produces a standing wave in a string, as shown in the diagram below. D) higher frequency and a longer wavelength 13. Two waves traveling in the same medium and having the same wavelength ()) interfere to create a Wave Generator standing wave. What is the distance between two consecutive nodes on this standing wave? A) * B) # C D ) If the speed of the wave is 10. meters per second what is its frequency? A) 0.40 Hz B) 5.0 Hz C) 10. Hz D) 40. HzWhich diagram best represents the resultant pulse at the instant the pulses are passing through each other? B) D) 2. The diagram below shows two pulses, each of length /| 4. Two pulses, A and B, travel toward each other along traveling toward each other at equal speed in a rope. the same rope, as shown below. +2 0.15 m +1 Units Which diagram best represents the shape of the rope when both pulses are in region AB? -1 A) B) -2 When the centers of the two pulses meet at point X, the amplitude at the center of the resultant pulse will be A) +1 unit B) +2 units C) 0 D) -1 unit 5. Two waves having the same frequency and amplitude are traveling in the same medium. Maximum constructive interference occurs at points where the phase difference between the two superposed waves is 3. As the phase difference between two superposed A) 00 B) 90 C) 180 D) 270 waves changes from 180 to 90", the amount of 6. A police car traveling at a speed of 30.0 meters per destructive interference second sounds its siren, which has a frequency of A) decreases B) increases 1.00 x 103 hertz. As the police car approaches a stationary pedestrian, the pedestrian detects a siren C) remains the same frequency of 8. The diagram below shows two waves traveling in the A) 30.0 Hz B) 9.19 x 102 Hz same medium. Points A, B, C, and D are located C) 1.00 x 103 Hz D) 1.10 x 103 Hz along the rest position of the medium. The waves interfere to produce a resultant wave. 7. The diagram below shows two pulses approaching +0.30 each other from opposite directions in the same +0.20 medium. Pulse A has an amplitude of 0.20 meter and -0 10 pulse B has an amplitude of 0.10 meter. Rest Position of Medium 10.20 After the pulses have passed through each other, what will be the amplitude of each of the two pulses? A) A = 0.10 m; B = 0.20 m B) 4 = 0.20 m; B = 0.10 m The superposition of the waves produces the greatest C) A = 0.30 m; B = 0.30 m positive displacement of the medium from its rest D) 4 - 0.15 m; B = 0.15 m position at point BB CC DD