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JEE PHYSICS MCQ: RAY OPTICS

1 Medium

1 of 1

Application +4 | -1

Refractive index of air is

\mathrm{1}\mathrm{.0003}

. The correct thickness of air column which will have one more wavelength of yellow light (

6000\;\mathop \mathrm{A}\limits^ \circ

) than in the same thickness in vacuum is

View answer and explanation

Correct option: A

2\,\,mm

Option A (

2\,\,mm

) is correct because it uses the refractive index to calculate the thickness required for one extra wavelength.

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