Question:medium
If an electromagnetic wave of frequency \(5\) MHz travels from vacuum into a dielectric medium of electric permittivity \(\varepsilon_r=4\), then its
If an electromagnetic wave of frequency \(5\) MHz travels from vacuum into a dielectric medium of electric permittivity \(\varepsilon_r=4\), then its
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When a wave enters a new medium, frequency stays constant. Speed and wavelength change together.
Updated On: Apr 29, 2026
- wavelength is halved and frequency remains unchanged
- wavelength and frequency are both doubled
- wavelength and frequency both remain unchanged
- wavelength is doubled but the frequency remains unchanged
- wavelength remains unchanged but the frequency is doubled
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The Correct Option is A
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