Plzzzzz ans this
Asked by | 27th May, 2009, 02:57: PM
Expert Answer:
wavelength = 600 nm, c = 3 x 108 m / s
n = 1.5
c = frequency x wavelength
frequency in air = 3 x 108/ 6 x 10-7 = 5 x 1014 Hz
n = c / v
speed (v) in glass = 2 x 108 m / s
frequency remains same = 5 x 1014 Hz
since v = frequency x wavelength
wavelength = 2 x 108 / 5 x 1014 = 0.4 x 10-6 = 0.4 micro meter
Answered by | 27th May, 2009, 04:44: PM
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