JEE Main & Advanced
Sample Paper
JEE Main - Mock Test - 43
question_answer
A point source S is placed at the bottom of a transparent block of height \[10\text{ }mm\]and refractive index\[2.72\]. It is immersed in a lower refractive index liquid as shown in the figure. It is found that the light emerging from the block to the liquid forms a circular bright spot of diameter \[11.54\text{ }mm\]on the top of the block. The refractive index of the liquid is