The wavelength of sodium light in air is $5890\,\,{{\rm{A}}^0}$. The velocity of light in air is $3\,\, \times \,\,{10^{ - 8}}\,\,{\rm{m}}{{\rm{s}}^{ - 1}}$. The wavelength of light in a glass of refractive index ${\rm{1}}{\rm{.6}}$ would be close to

JEE PHYSICS MCQ: RAY OPTICS

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The wavelength of sodium light in air is

5890\,\,{\mathrm{A}^0}

. The velocity of light in air is

3\,\, \times \,\,{10^{ - 8}}\,\,\mathrm{m}{\mathrm{s}^{ - 1}}

. The wavelength of light in a glass of refractive index

\mathrm{1}\mathrm{.6}

would be close to

View answer and explanation

Correct option: B

3681\,\,{\mathrm{A}^0}

Option B (

3681\,\,{\mathrm{A}^0}

) is correct because the wavelength in glass is shorter than in air due to the refractive index of the glass.

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