1.

A glass piece is dipped in a liquid of refractie index `4//3`, it gets dissappeared in the liquid. The refractive index of the glass piece isA. `3/4`B. `5/3`C. `4/5`D. `4/3`

Answer» (d) The glass piece will dissappear only, if the refractive index of the glass and liquid is same.
So, refractive index of glass piece must be `4/3`.


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