An observer looks a tank at angle 45 degree through a telescope and the corner of the tank is visble.When the tank is filled with liquid an insect is observed by him at the centre of the tank.At t=0 when the cork is opend at the bottom of the tank the insect is visible for a certain period of time.so find the refractive index of the liquid.

Dear student,

The required refractive index of the liquid is: 4/3

Please feel free to ask your queries here. We are all IITians and here to help you in your IIT JEE preparation.

All the best.

Win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.

Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar  respectively : Click here to download the toolbar..

Askiitians Expert

Sagar Singh

B.Tech, IIT Delhi