What is the wavelength of red light with a frequency of #460 * 10^12# #Hz#?

1 Answer
Apr 11, 2016

#lambda=6.52*10^-7 m#, rounded to two decimal places
or #652nm#

Explanation:

Speed of light in vacuum is #3.0*10^8ms^-1#
Frequency, wavelength and speed of light are related by the equation #"Speed"="Frequency"xx"Wavelength"#
or #c=nu*lambda#
Inserting given values in the equation we obtain #3.0*10^8=460*10^12xxlambda#
#lambda=(3.0*10^8)/(460*10^12)=6.52*10^-7m#, rounded to two decimal places

or #=652nm#