A glass plate having an index of refraction is $1.66$ is immersed in a certain alcohol. The surface of the glass is inclined at an angle of $44 ^ { \circ }$ with the vertical. When a horizontal ray in the glass strikes the interface, you observe that it is at the critical angle. What is the index of refraction of the alcohol?
A) $1.11$
B) $1.09$
C) $1.13$
D) $1.15$
E) $1.17$

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The Answer of A glass plate having an index of refraction is $1.66$ is immersed in a certain alcohol. The surface of the glass is inclined at an angle of $44 ^ { \circ }$ with the vertical. When a horizontal ray in the glass strikes the interface, you observe that it is at the critical angle. What is the index of refraction of the alcohol?
A) $1.11$
B) $1.09$
C) $1.13$
D) $1.15$
E) $1.17$

A Glass Plate Having an Index of Refraction Is 1.661.661.66 Is Immersed in a Certain Alcohol

A Glass Plate Having an Index of Refraction Is $1.66$ Is Immersed in a Certain Alcohol