-
Equation of a progressive wave is given by
y = 4sin 
π 
t - x 
+ π 
5 9 6
Then which of the following is correct?
-
- v = 5 cm
- λ = 18 cm
- a = 0.04 cm
- f = 50 Hz
Correct Option: B
The standard equation of a progressive wave is
| y = a sin | | 2π | | - | | + φ | | ||
| T | λ |
The given equation can be written as
| y = 4 sin | | 2π | | - | | + | | |||
| 10 | 18 | 6 |
∴ a = 4 cm, T = 10 s, λ = 18 cm and φ = π/6
Hence, (b) is correct.
