CBSE Class 12 Physics — Electromagnetic Waves
All previous year questions from Chapter: Electromagnetic Waves
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An electromagnetic wave passes from vacuum into a dielectric medium with relative electrical permittivity and relative magnetic permeability . Then, its
1 mark· A· EM wave entering a dielectric: change of wavelength and frequency - 7
Electromagnetic waves used in a diagnostic tool in medicine have a wavelength range
1 mark· A· Electromagnetic Spectrum — X-rays