Answer:
Explanation:
Velocity of a wave is describe as
velocity =Frequency × Wavelength
Mathematically
v = fλ
Hence, Frequency, F = v / λ
Wavelength λ = v/f
So, if the frequency is kept constant, wavelength of the wave becomes directly proportional to velocity of the wave.
And this implies that, as the speed double, the wavelength is double.
No cluuuueee :/ sowwwwyyy but good luck
Well,
When an object's velocity changes, we call it acceleration.
Acceleration: The time rate of change in an object's velocity
I., II., and IV. are examples of acceleration. III. isn't.