Tham khảo tài liệu 'physics_test_bank_split_17', khoa học tự nhiên, vật lý phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Simpo PDF Merge and Split Unregistered Version - http 8. Three traveling sinusoidal waves are on identical strings with the same tension. The mathematical forms of the waves are yi x t ym sin 3x 6t y2 x t ym sin 4x 8t and y3 x t ym sin 6x 12t where x is in meters and t is in seconds. Match each mathematical form to the appropriate graph below. y y y 9. x x x x ii iii A. B. C. D. E. yi yi yi yi yi i y2 ii y3 iii iii y2 ii i i y2 iii ii ii y2 i iii iii y2 i ii ans A The displacement of a string is given by y x t ym sin kx ut . The speed of the wave is A. 2nk u B. u k C. uk D. 2n k E. k 2n ans B 10. A wave is described by y x t sin 3x 10t where x is in meters y is in centimeters and t is in seconds. The angular wave number is A. m B. 3n rad m C. 10 rad m D. 10n rad m E. cm ans E 11. A wave is described by y x t sin 3x 10t where x is in meters y is in centimeters and t is in seconds. The angular frequency is A. B. C. D. E. s rad s 10n rad s 20n rad s 10 rad s ans E x Chapter 16 WAVES I 241 Simpo PDF Merge and Split Unregistered Version - http 12. Water waves in the sea are observed to have a wavelength of 300m and a frequency of . The speed of these waves is A. m s B. s C. 21m s D. 210 m s E. none of these ans C 13. Sinusoidal water waves are generated in a large ripple tank. The waves travel at 20 cm s and their adjacent crests are apart. The time required for each new whole cycle to be generated is A. B. C. D. E. 100s s s ans E 14. A traveling sinusoidal wave is shown below. At which point is the motion 180 out of phase with the motion at point P ans C 15. The displacement of a string carrying a traveling sinusoidal wave is given by y x t ym sin kx wt 0 . At time t 0 the point at x 0 has a displacement of 0 and is moving in the positive y direction. The phase constant Ộ is A. 45 B. 90 C. 135 D. 180 E. 270 ans D 242 Chapter 16 WAVES I Simpo
