An electromagnetic wave in a vacuum has a wavelength of 0.07 m. What is its frequency?

1 Answer
Mar 18, 2017

#f=3/7*10^(10) " "s^(-1)#

Explanation:

#"You can calculate the frequency of electromagnetic wave using"#
#"the formula given below."#

#f=c/lambda#

#"where c:speed of light in vacuum , f:frequency and "#

#lambda :" wavelength "#

#"The speed of light in a vacuum is " c~=3.10^8 " "m/s#

#f=(3.10^8)/(7*10^(-2)#

#f=3/7*10^(10) " "s^(-1)#