Which one of the following is not an electromagnetic wave: April 4, 2021 / By Preparation Point / Combined Competitive Examination Paper 2019 Mcqs SPSC Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn Sound Wave Infrared Rays Radio Wave X-Ray Share this:TwitterFacebookMoreTelegramWhatsAppLike this:Like Loading... Related Share on WhatsApp Share on Facebook Share on Twitter Share on LinkedIn