An electromagnetic wave of frequency \[\nu =3.0\,MHz\] passes from vac – McqOptions

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1.	An electromagnetic wave of frequency \[\nu =3.0\,MHz\] passes from vacuum into a dielectric medium with permitivity \[\varepsilon =4.0\]. Then [AIEEE 2004]
A.	Wavelength is doubled and the frequency remains unchanged
B.	Wavelength is doubled and frequency becomes half
C.	Wavelength is halved and frequency remains unchanged
D.	Wavelength and frequency both remain unchanged
Answer» D. Wavelength and frequency both remain unchanged

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