Question

If the absolute refractive index of glass and water is

3/2



and



4/3

respectively then find the ratio of speed of light in water and glass.​

Answer 1

Answer:

and then we have been trying, but it

Answer 2

Answer:

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Explanation:

$Given, \: \: \: μ_{g} = \frac{3}{2} ,μ_{w} = \frac{4}{3}$

$Let \: v_{g} \: \: and \: v_{w} \: be \: the \: speed \: of \: light in \: the \: glass \: and \: water \: respectively. \: Then \:$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: μ _{g} = \frac{c}{ v_{g} } , μ_{w} = \frac{c}{ v_{w} }$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \ \frac{ μ_{g} }{ μ _{w}} = \frac{ v_{w} }{ v_{g}}$

$⟹ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \frac{ v_{w} }{ v_{g} } = \frac{ \frac{3}{2} }{ \frac{4}{3} } = \frac{9}{8} .$