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The difference in the number of waveleng...

The difference in the number of wavelengths, when yellow light propagates through air and vacuum columns of the same thickness, is one. The thickness of the air column is: (Refractive index of air `mu_(a)= 1.0003`,Wavelength of yellow light in vacuum = 6000 `overset(circ)(A)`)

A

1.8nm

B

2mm

C

2cm

D

2.2cm

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The correct Answer is:
B
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The difference in the number of wavelengths, when yellow light propagates through air and vacuum columns of the same thickness is one. The thickness of the air column is Refractive index of air mu_(c)= 1.0003 , wavelength of yellow light in vacuum = 6000 A

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