A ray of light is incident at the glass-...

A ray of light is incident at the glass-water interface at an angle I, it emerges fimally parallel to the surface of water, the the value of `mu_g` would be

`(4//3)sini`

`1//sini`

`4//3`

`1`

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Verified by Experts

The correct Answer is:

Glass-water: `mu_gsini=mu_omegasinr`
Water-air: `mu_omegasinr=mu_asin90^@`
`mu_gsini=mu_asin90^@=1`
`mu_g=1//sini`

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