What is the wavelength in meters of ultraviolet light with? = 2.50 x 10^15 s-1?

Question

 mostly need help converting

Answer 1

we can use light velocity, frequency and wavelength equation  C = λf  

C = 3 * 10^8 m/s    is velocity of light 

f = 2.50 * 10^15 Hz     frequency of ultraviolet light  

λ = ultraviolet light wavelength (called labmda )

so

C = λf -----> λ = C / f -----> λ = 3*10^8 / 2.50*10^15 ----> λ  = 1.2 * 10^(-7) m 

and we can write 120* 10^(-9) m  which is 120 nm (nano meter)

 

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