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### Quantum World

Posted: Thu Oct 11, 2018 11:27 pm
Just to be clear, the shorter the wavelength the higher the frequency and the longer the wavelength the lower the frequency?

### Re: Quantum World

Posted: Thu Oct 11, 2018 11:30 pm
Yes, that's correct. Frequency and wavelength have an inverse relationship, so frequency increases as wavelength decreases.

### Re: Quantum World

Posted: Thu Oct 11, 2018 11:31 pm
Correct. Frequency and wavelength are inversely proportional. As one increases, the other decreases.

### Re: Quantum World

Posted: Thu Oct 11, 2018 11:34 pm
Yes, short wavelength lights have high frequency and long wavelength lights have low frequency. This can be proved by using the electromagnetic equation c=vλ where c is the speed of light, v is the frequency, and λ is the wavelength. They have a universal relationship.

### Re: Quantum World

Posted: Fri Oct 12, 2018 12:12 am
Yes, the shorter wavelengths have higher frequency and longer wavelengths have shorter frequency. This can be proven from the equation c=(lambda)(frequency) where c is a constant and equals 3.00x10^8 m/s. As wavelength increases, the frequency would have to decrease and vice versa in order to maintain the constant value of c. This shows that wavelength and frequency have an inverse relationship.

### Re: Quantum World

Posted: Fri Oct 12, 2018 12:33 am
On a related note, is there any connection between the velocity of an electron and frequency? 1B.15 asks for wavelength of an ejected electron using a given velocity, so I am unsure of how to approach the problem.

### Re: Quantum World

Posted: Fri Oct 12, 2018 10:45 am
Dr. Lavelle just clarified in lecture that this relationship only applies to electromagnetic radiation, so it can’t be used for all waves.