Answer:
The speed of the wave = 6.64 m/s.
Explanation:
Wave: A wave is a disturbance which travels through a medium and transfer energy from one point to another without causing any permanent displacement of the medium itself.
The velocity of a wave (v) = λf...................... Equation 1
Where λ = wave length of the wave, f = frequency of the wave.
Given: λ = 8 m, and
f = 1/t where t = period.
t = 1.2 s
f = 1/1.2 = 0.83 hertz
Substituting these values into equation 1
v = 8 × 0.83
v = 6.64 m/s.
Therefore the speed of the wave = 6.64 m/s.
