given the speed of light as 3.0 x 10 ^8 m/s, calculate the wavelength of the electromagnetic radiation whose frequency is 7.500 x 10 ^12 Hz.
Please explain how to figure this out!
thanks in advance!
2007-12-15 12:41:03 · 3 answers · asked by hi 3 in Science & Mathematics ➔ Chemistry
You know speed of light = wavelength X frequency
rotating the equation for wavelength:
light/frequency = wavelength
3X10^8 / 7.5X10^12 = wavelength
=0.00004m
2007-12-15 12:46:47 · answer #1 · answered by ¿ /\/ 馬 ? 7 · 0⤊ 0⤋
The relation you need to use is:
velocity = wavelength * frequency
You're given v, which is the speed of light, and frequency, which is 7.5x10^12 Hz
So now, simply solve for wavelength:
wavelength = 3x10^8 / 7.5x10^12
= 4x10^-5 m
2007-12-15 20:47:16 · answer #2 · answered by Lita W 2 · 0⤊ 0⤋
c=Îf
therefore:
Î=c/f = (3E8m/s) / (7.5E12Hz)
Î = 3.997E-5 m
2007-12-15 20:49:46 · answer #3 · answered by Bernard 4 · 0⤊ 0⤋