Monochromatic light of frequency 5 × 10^14 Hz travelling in vacuum enters a medium of refractive index 1.5. Its wavelength in the medium is
(a) 5000 Å
(b) 4000 Å
(c) 5500 Å
(d) 6000 Å
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option d - 6000A°
Explanation:
Wavelength 1=3×108m/s÷5×1014m/s=6000 1 = 3 × 10 8 m / s ÷ 5 × 10 1 4 m / s = 6000 angstrom.
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