Science help please? Easy
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Science help please? Easy

[From: ] [author: ] [Date: 11-09-09] [Hit: ]
You need f by itself, and f is multiplied by 253, so you want to reverse that by dividing 253 out of it.Do the same to both sides: (3.Doing the math gets you this: 1185770.75=f,......
Ultraviolet light can have a wavelength of 253 nm.
a)calculate the frequency of this ultraviolet light. (c=f lambda) sorry, i dont have the symbol.
this is what i have so far:
c= 3.00x10^8 (speed of light)
f=?
lambda=253


3.00x10^8=f (253)


Now what?

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You're on the right track. All you do now is some simple algebra. You need f by itself, and f is multiplied by 253, so you want to reverse that by dividing 253 out of it.

Do the same to both sides: (3.00x10^8)/253 = (f(253))/253

Doing the math gets you this: 1185770.75=f, in hertz. In scientific notation with proper sig figs, it's 1.19x10^6 Hz.
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