- 1 (31.87 KiB) Viewed 15 times
1. Consider a wave problem 8² f 62 8ªf 6². əx²ət²¹ Ət² əx² for a signal f(x, t) where a, b are non-zero real numbers. Fo
-
answerhappygod
- Site Admin
- Posts: 899603
- Joined: Mon Aug 02, 2021 8:13 am
1. Consider a wave problem 8² f 62 8ªf 6². əx²ət²¹ Ət² əx² for a signal f(x, t) where a, b are non-zero real numbers. Fo
1. Consider a wave problem 8² f 62 8ªf 6². əx²ət²¹ Ət² əx² for a signal f(x, t) where a, b are non-zero real numbers. For a travelling wave solution f(x, t) A cos(Kx - wt) answer each of the following: (i) Give the dispersion relation. (ii) Give the phase speed c. (iii) Is the wave dispersive? (iv) Give the group velocity Cg. (v) In the limit of long wavelength, what is the relationship between c and cg? =