1.

The refractive index of glass is 1.5 for light waves of X = 6000 A in vacuum. Its wavelength in glass is (a) 2000 Å (b) 4000 Å (c) 1000 Å (d) 3000 Å

Answer»

WAVELENGTH IN GLASS = WAVELENGTH IN AIR / REFRACTIVE INDEX OF GLASS             =6000*10^-10/1.5=4000*10^-10        OPTION  2Explanation:



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