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JEE Main 24 Feb 2021 Shift 2 Solved Paper

Section: Physics
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Question : 30 of 90
 
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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 .........×10−2cm.
[24 Feb 2021 Shift 2]
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