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What is frequency?

  1. Sep 2, 2012 #1
    I am just a toddler. Please explain me about frequency. What shapes do waves have? Do all waves travel like the waves produced, when a stone is dropped on water? And when the frequency of a signal is varied and if the new frequency is in the visible region or audible range, Can i see or hear it?
  2. jcsd
  3. Sep 2, 2012 #2


    User Avatar

    Staff: Mentor

    Take a look at these links.

    I guess it depends on how you are modifying the wave. I've never heard of anything directly modifying waves before. Usually something measures the incoming wave and the emits a new one at a new frequency if need be.
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