JEE Main 2004Annual, Paper 1PhysicsEasyElectromagnetic Waves120× since 2002An electromagnetic wave of frequency v=3.0v=3.0v=3.0 MHzMHzMHz passes from vacuum into a dielectric medium with permittivity ∈=4.0.\in = 4.0.∈=4.0. ThenAOption A. wave length is halved and frequency remains unchangedBOption B. wave length is doubled and the frequency becomes halfCOption C. wave length is doubled and the frequency remains unchangedDOption D. wave length and frequency both remain unchanged.CheckSkip · show solution