JEE Advanced | 2014Basic Maths and Units and DimensionsHard
Question
A point source S is placed at the bottom of a transparent block of height 10 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 mm on the top of the block. The refractive index of the liquid is
Options
A.1.21
B.1.30
C.1.36
D.1.42
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