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### Homework Problem 1A.9

Posted: **Tue Oct 09, 2018 9:30 pm**

by **Emma Randolph 1J**

When trying to determine the wavelength and energy of photon for when the wave has a frequency of 300MHz, how would you do it? I'm confused how to apply the equations to the problem.

### Re: Homework Problem 1A.9

Posted: **Tue Oct 09, 2018 10:03 pm**

by **Kessandra Ng 1K**

If the wave has frequency 300Hz, you can use wavelength = speed of light/frequency to find the wavelength. To calculate energy, you can use energy = Planck's constant x frequency.

### Re: Homework Problem 1A.9

Posted: **Tue Oct 09, 2018 10:08 pm**

by **Rachel Yoo 1F**

To find the wavelength you first convert the frequency of MHz to Hz. Then using the equation c=(lambda)v, you can find the wavelength.