Question

what is the wavelength of blue light with a frequency of 550nm

Answer 1

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Answer 2

4.28 x 10^-4 m

Answer 3

OMG

Answer 4

550 nm is a wavelength, not a frequency (remember dimensional analysis?). The frequency of light with a 550nm wavelength would be speed of light /wavelength = (3 x 10^8 m/s) / 550 x 10^-9 m = 5.45 x 10^14 Hz

Answer 5

stans absolutely right. Also, 550 nm is green, not blue ;)

-> http://bit.ly/asN0Tz

Answer 6

For similar problems, just remember the following formula:
\[c=f \lambda\]where c is the speed of light (3 x 10^8 m/s); f is the frequency of the light; and lambda is the wavelength of the light.

Everything else is simple algebra.

Answer 7

550nm is a wavelength not a frequency. I think this is what you meant to ask: What is the FREQUENCY of a blue light with a WAVELENGTH of 550nm?\[\lambda=c/f \]Where 'λ' is the wavelength, 'c' is the speed of light and 'f' is frequency. We can then rewrite the equation to solve for 'f':\[f=c/\lambda \rightarrow f=(3\times10^8)/(550\times10^{-9}) \rightarrow f=5.45\times10^{15}\]