## Amplitude and Velocity Relationship

$c=\lambda v$

Wasila Sun 2I
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### Amplitude and Velocity Relationship

At the end of today's introductory lecture of the quantum world, Dr. Lavelle had a diagram of waves and their relationship between wavelength and frequency to prove c=hv. While amplitude wasn't talked about in detail in the lecture, I was wondering if a wave with wavelength=x, v=4 Hz, and ampitude=y would have smaller velocity compared to a wave with wavelength=x, v=4 Hz, and amplitude=2y because the second one would have to travel a longer path in the same amount of time as wave 1, considering their only difference is amplitude.

I hope my question makes sense.

Lucy Wang 2J
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### Re: Amplitude and Velocity Relationship

My understanding is that amplitude does not affect wave velocity. However, amplitude has more to do with the energy or intensity of the light? I'm not 100% sure though, anyone can feel free to correct me.

Sana Nagori 2H
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### Re: Amplitude and Velocity Relationship

Lucy Wang 1A wrote:My understanding is that amplitude does not affect wave velocity. However, amplitude has more to do with the energy or intensity of the light? I'm not 100% sure though, anyone can feel free to correct me.

I think you're correct. Amplitude is independent of frequency in simple harmonic motion which is basically the periodic motion that light waves follow.

josephspindler2H
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### Re: Amplitude and Velocity Relationship

Sana Nagori 2J wrote:
Lucy Wang 1A wrote:My understanding is that amplitude does not affect wave velocity. However, amplitude has more to do with the energy or intensity of the light? I'm not 100% sure though, anyone can feel free to correct me.

I think you're correct. Amplitude is independent of frequency in simple harmonic motion which is basically the periodic motion that light waves follow.

As someone who likes physics/mechanics, it is cool to see it applied to chemistry concepts. Also thank you Sana for the concise explanation.