00:03
All right, guys.
00:03
Down from 51.
00:04
Chapter seven in the following ways.
00:07
Representing electromagnetic grave radiation.
00:11
Which way has a long, longer wavelength? well, that easy.
00:16
No longer us.
00:17
This wave has the long wavelength wave.
00:20
Ah, wave wave a okay, because remember, we're waiting like this.
00:25
It's the distance between in a repeat in your wave.
00:28
So, like district between here to here and you could see district ring here to here is longer than distant train here to here now, in terms of capturing the waveland.
00:38
So you have 1234 repeats when you us repeats here.
00:47
So the length this entire sections 1.6 times 10 to negative third meters.
00:51
So so 1.6 and said negative third about by four that 0.4 times 10 to the negative third meters for wave a we've be you have 12345678 that 0.2 times 10 to the negative third meters for wave.
01:15
Be now which wave has the higher by your frequency and larger photon energy.
01:28
So remember great the wavelength smaller the frequency and energy so wave a has a longer wavelength so has a smaller frequency and energy wave b has a smaller wavelengths, so it's higher frequency and energy...
