Elite whey strikes the moon and reflect to word 8 as the light wave travels from the Moon towards Earth the wave
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0.66 · Solution · Given,. frequency, f=4×1014 Hz. Wavelength, λ=5×10−7m. velocity, v=fλ. =4×1014×5×10−7. =20×107. v=2×108m/s. Refractive index, μ=vc. =2×1083×1 ...
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