As shown in figure, light is incident normally on one face of the prism. A liquid of refractive index μ is placed on the horizontal face AC. The refractive index of prism is 3/2. If total internal reflection taken place on face AC, μ should be less than l√34, where l is an integer. Find the value of l.

As shown in figure, light is incident normally on one face of the pris

1.	As shown in figure, light is incident normally on one face of the prism. A liquid of refractive index μ is placed on the horizontal face AC. The refractive index of prism is 3/2. If total internal reflection taken place on face AC, μ should be less than l√34, where l is an integer. Find the value of l.
Answer» As shown in figure, light is incident normally on one face of the prism. A liquid of refractive index $μ$ is placed on the horizontal face $AC$ . The refractive index of prism is $3 / 2$ . If total internal reflection taken place on face $AC$ , $μ$ should be less than $\frac{l \sqrt{3}}{4},$ where $l$ is an integer. Find the value of $l$ .

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