Problems in General Physics → Optics → Dispersion and Absorption of Light |
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5.202. Find the free electron concentration in ionosphere if its refractive index is equal to n = 0.90 for radiowaves of frequency ν = 100 MHz.
5.203. Assuming electrons of substance to be free when subjected to hard X-rays, determine by what magnitude the refractive index of graphite differs from unity in the case of X-rays whose wavelength in vacuum is equal to λ = 50 pm.
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