For a given incident ray as shown in Fig., the condition of total internal reflection of ray will be satisfied if the refractive index of the block will be.
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For the given incident ray as shown in the figrue,the condition of total interna reflection of the ray will be satisfied,if the refracrtive index of block will be .

Under what conditions is the phenomenon of total internal reflection between the critical angle of incidence and the refractive index of the medium.

As shown in figure, a ray of light is incident on glass cube. If it experiences total internal reflection in vertical plane, then what is the refractive index of glass?

For total internal reflection to take place, the angle of incidence i and the refractive index mu of the medium must satisfy the inequality

For total internal reflection to take place, the angle of incidence i and the refractive index mu of the medium must satisfy the inequality

A cubical block of glass of refractive index n_1 is in contact with the surface of water of refractive index n_2. A beam of light is incident on vertical face of the block. After refraction a total internal reflection at the base and refraction at the opposite face take place. The ray emerges at angle theta as shown. The value of theta is given by

A cubical block of glass of refractive index n_1 is in contact with the surface of water of refractive index n_2. A beam of light is incident on vertical face of the block. After refraction a total internal reflection at the base and refraction at the opposite face take place. The ray emerges at angle theta as shown. The value of theta is given by

A cubical block of glass of refractive index n_1 is in contact with the surface of water of refractive index n_2. A beam of light is incident on vertical face of the block. After refraction a total internal reflection at the base and refraction at the opposite face take place. The ray emerges at angle theta as shown. The value of theta is given by

For total internal reflection to take place, the angle of incidence I and the refractive index mu of the medium must satisfy the inequality

For total internal reflection to take place, the angle of incidence I and the refractive index mu of the medium must satisfy the inequality