Lyndon's Workshop Worksheet Problem


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Joanne Kang 3I
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Joined: Thu Jul 25, 2019 12:17 am

Lyndon's Workshop Worksheet Problem

Postby Joanne Kang 3I » Sat Nov 02, 2019 12:41 pm

Can someone please give me the solutions to these questions? They are from the Week 3 Worksheets.

2. The CHEM radio station broadcasts at 80.1 MHz. Calculate the wavelength of the corresponding radio waves and tune in to the station one day.

4. Can an electron from the hydrogen atom be confined to its atomic diameter of 1.06x10^-10m? Support your answers with calculations.

kevinchang_4I
Posts: 55
Joined: Tue Nov 13, 2018 12:17 am

Re: Lyndon's Workshop Worksheet Problem

Postby kevinchang_4I » Sat Nov 02, 2019 2:34 pm

For the first question we just have to use Wavelength = Speed of light / Frequency.

It's given us the frequency, just in the wrong units, MHz not Hz. Remembering SI stuff, M = mega = 1,000,000 = 10^6.

Now we have 8.01 x 10^7 Hz

Wavelength = 3 x 10^8 / 8.01 x 10^7 = 3.74272732 meters

Joanne Kang 3I
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

Re: Lyndon's Workshop Worksheet Problem

Postby Joanne Kang 3I » Sat Nov 02, 2019 2:42 pm

kevinchang_4I wrote:For the first question we just have to use Wavelength = Speed of light / Frequency.

It's given us the frequency, just in the wrong units, MHz not Hz. Remembering SI stuff, M = mega = 1,000,000 = 10^6.

Now we have 8.01 x 10^7 Hz

Wavelength = 3 x 10^8 / 8.01 x 10^7 = 3.74272732 meters


Wait but I thought that equation was only for photons?

805291863
Posts: 100
Joined: Sat Sep 14, 2019 12:16 am

Re: Lyndon's Workshop Worksheet Problem

Postby 805291863 » Sat Nov 02, 2019 3:18 pm

The equation applies to electromagnetic radiation, which a photon behaves like


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