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Physics - Waves Formula Question

I am quite capable of using physics formulae to answer exam questions but I found this question in my textbook and I wasn't sure how to do it:

"The waves that carry Radio 4 on the long-wave band have a wavelength of 1500 metres. Calculate the frequency of these waves."

How can I work out the frequency of the wave when I've only been given the wavelength? Don't I also need to know the wave speed?

Help please?
Original post by Sheriarty
I am quite capable of using physics formulae to answer exam questions but I found this question in my textbook and I wasn't sure how to do it:

"The waves that carry Radio 4 on the long-wave band have a wavelength of 1500 metres. Calculate the frequency of these waves."

How can I work out the frequency of the wave when I've only been given the wavelength? Don't I also need to know the wave speed?



Yes. And you should know that radio waves, being electromagnetic waves, travel at the speed of light.
This is a constant in your data table.

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