L If an electromagnetic wave of frequency 5 MHz travels from

Last updated: 6/5/2023

L If an electromagnetic wave of frequency 5 MHz travels from vacuum into a dielectric medium of electrical permittivity 4 then its taker 1 r A wavelength is halved and the frequency remains unchanged B wavelength and frequency are both doubled son C wavelength and frequency both remain unchanged D wavelength is doubled but the frequency remains unchanged E wavelength remains unchanged but the frequency is doubled