A glass slabn of thickness 8 cm contain...

A glass slabn of thickness 8 cm contains the same number of waves as 10 cm of water, when the same monochrom0atic light transaverses both. If the refractive index of water is 4/3, then the refractive indexd of glass is

`5/3`

`5/4`

`16/15`

`3/2`

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