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Question: Air has refractive index of 1.0003. The thickness of air column, which will have one more wavelength...

Air has refractive index of 1.0003. The thickness of air column, which will have one more wavelength of yellow light (6000Å) than in the same thickness of vacuum, is –

A

2 mm

B

2 cm

C

2 m

D

0.2 mm

Answer

2 mm

Explanation

Solution

d = λμ1=6000×10100.0003\frac { \lambda } { \mu - 1 } = \frac { 6000 \times 10 ^ { - 10 } } { 0.0003 }m = 2mm