Question

Electromagnetic waves of frequency 5x10^14 Hz are passed through a liquid. The wave length of waves in liquid is measured to be 4.5x10^-7 m. Calculate the velocity of electromagnetic waves in vacuum.​

Answer 1

Answer:

given data

                       f= 5 * 101^4Hz          

                     wave lenght = 4.7* 10^-7 m    

                    velocity = ?

        solution

using universal wave equation

                          V = frequency * wavelenght

                              = 5* 10^14 Hz   * 4.5 * 10 -7 m

                              =22.5 * 10^ 7 m/s

Explanation: