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Electromagnetic Waves question

2013 · Q132
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Electromagnetic Waves question

2013 · Q132

NEETPhysicsElectromagnetic WavesMCQ+4 / −1
An electromagnetic wave of frequency υ=3.0\upsilon = 3.0υ=3.0 MHz passes from vaccum into a dielectric medium with relative permittivity εr{{\varepsilon _r}}εr​ = 4.0. Then
  1. A
    Wavelength is doubled and frequency becomes half.
  2. B
    Wavelength is halved and frequency remains unchanged.
  3. C
    Wavelength and frequency both remain unchanged.
  4. D
    Wavelength is doubled and frequency unchanged.
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