JEE Previous Year Question
An electromagnetic wave of frequency 3GHz enters a dielectric medium of relative electric permittivity 2.25 from vacuum. The wavelength of this wave in that medium will be ____ cm
Topic: JEE PYQ
Answer: 667. Full step-by-step solution below.
Correct answer: 667
Solution
(667)in vacuum
Where refractive index
Assuming non-magnetic material
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