Question

What is the speed of a wave with a wavelength of 3 m and a frequency of .1Hz?

Answer 1

The correct answer to the question is 0.3 m/s i.e the speed of the wave is 0.3 m/s.

CALCULATION:

As per the question, the wavelength of the wave is given as
`\lambda=\ 3\ m.`

The frequency of the wave f = 0.1 Hz.

We are asked to calculate the speed [ V ] of the wave .

The relation among speed, frequency and wavelength of a wave is given as -

speed = frequency × wavelength

⇒ V = f ×
`\lambda`

= 3m × 0.1 Hz

= 0.3 m/s. [ans]

Hence, the speed of the wave will be 0.3 m/s.

Answer 2

We know,
Speed = Frequency * Wavelength
Speed = 3 * 0.1 m/s [hertz = 1/sec.]
So, your final answer is 0.3 m/s

Hope this helps!!