A.75
b.7500
c.750,000
d.75 million
e.750 million
2006-10-23 17:29:05 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
c=lamdaXnu
nu=c/lamda
freq=3.0X10^8 m/s / 4000nm (assuming it's nm since nm and m are often used to measure wavelength and using m would result in an answer of .075MHz)
=7.5X10^13Hz
=7.5X10^7MHz
=75,000,000
=75 million
not a 100% sure cus there isn't a unit given for wavelength!
2006-10-23 17:42:57 · answer #1 · answered by Jacqueline 2 · 0⤊ 1⤋
c/lambda = (300,000 km/s)/400 nm = 7.5E14 Hz = 7.5E8 MHz
Your blue light should be 400 nm or 4000 angstrom.
2006-10-24 00:58:08 · answer #2 · answered by arbiter007 6 · 0⤊ 0⤋
First of all you should have units and give the velocity of the light also
2006-10-24 03:04:00 · answer #3 · answered by Rishi 2 · 0⤊ 0⤋
IT'S ALL ABOUT THE UNITS!!! INCLUDE SOME ON THE WAVELENGTH PLEASE!!!!!
2006-10-24 00:33:12 · answer #4 · answered by g0atbeatr 3 · 0⤊ 0⤋