Q.The refractive index of glass is 2 and the speed of light in air is 4× 10⁸ ms-1 . calculate speed of light in glass.
Answers
Answer:
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Explanation:
Given parameters
Given parametersSpeed of light in vacuum (c) = 3 × 108 ms-1
Given parametersSpeed of light in vacuum (c) = 3 × 108 ms-1Refractive index of glass (ng) = 1.50
Given parametersSpeed of light in vacuum (c) = 3 × 108 ms-1Refractive index of glass (ng) = 1.50Refractive index of a medium = Speed of light in vacuum/Speed of light in the medium
Given parametersSpeed of light in vacuum (c) = 3 × 108 ms-1Refractive index of glass (ng) = 1.50Refractive index of a medium = Speed of light in vacuum/Speed of light in the mediumRefractive index of glass = Speed of light in vacuum/Speed of light in the glass
Given parametersSpeed of light in vacuum (c) = 3 × 108 ms-1Refractive index of glass (ng) = 1.50Refractive index of a medium = Speed of light in vacuum/Speed of light in the mediumRefractive index of glass = Speed of light in vacuum/Speed of light in the glassSpeed of light in the glass (v) = Speed of light in vacuum/ Refractive index of glass
Given parametersSpeed of light in vacuum (c) = 3 × 108 ms-1Refractive index of glass (ng) = 1.50Refractive index of a medium = Speed of light in vacuum/Speed of light in the mediumRefractive index of glass = Speed of light in vacuum/Speed of light in the glassSpeed of light in the glass (v) = Speed of light in vacuum/ Refractive index of glassv = c/ng
Given parametersSpeed of light in vacuum (c) = 3 × 108 ms-1Refractive index of glass (ng) = 1.50Refractive index of a medium = Speed of light in vacuum/Speed of light in the mediumRefractive index of glass = Speed of light in vacuum/Speed of light in the glassSpeed of light in the glass (v) = Speed of light in vacuum/ Refractive index of glassv = c/ngv = (3 × 108)/1.50
Given parametersSpeed of light in vacuum (c) = 3 × 108 ms-1Refractive index of glass (ng) = 1.50Refractive index of a medium = Speed of light in vacuum/Speed of light in the mediumRefractive index of glass = Speed of light in vacuum/Speed of light in the glassSpeed of light in the glass (v) = Speed of light in vacuum/ Refractive index of glassv = c/ngv = (3 × 108)/1.50v = 2 × 108 ms-1
Answer:
Refractive index of glass =
speedoflightinglass
speedoflightinvacuum
=
2×10
5
km/s
3×10
8
m/s
=
2×10
8
m/s
3×10
8
m/s
=1.5