00:01
All right, so for this question, really we're going to be converting to frequency, and then we're going to be using the plane's equation to figure out whether it is enough.
00:12
There's actually like two ways to solve this problem.
00:15
I'm going to do it my way, and then i'll just explain towards the end, like how you can alternatively do it if that's how you want to do it better.
00:22
But this is how i understand it more.
00:25
So what i did is i used the conversion and frequency and ways.
00:30
Length so we know that the speed of light is 2 .998 times 10 to the 8 meters per second and then the wavelength that they gave us was 540 nanometers so we have to convert that to meters and that you do that really simply if i multiply by 10 to 99 because there's a billion nanometers for every meter and easily you can cancel up the meters and then you're able to just continue on and find that the frequency after you divide in everything is 5 .55 times 10 to the 14th, right? so that's per second or you can also count as hertz.
01:19
Same thing.
01:22
Next what we're going to do is use the information that we got here into planes equation, which is energy is equal to the plains constant times the frequency...