Electromagnetic waves travel in medium with speed of 2×10^8 m/s. The relative permeability of medium is 1. What is relative permittivity of medium? Electromagnetic waves travel in medium with speed of 2×10^8 m/s. The relative permeability of medium is 1. What is relative permittivity of medium? September 4, 2021 Category: Arihant Physics by D.C Pandey , Chapter 8 - Electromagnetic Waves , Volume 2 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related