The angle of incidence for a ray of light at a refracting surface of a prism is $${45}^{o}$$. The angle of prism is $${60}^{o}$$. If the ray suffers minimum deviation through the prism, the angle of minimum deviation and refractive index of the material of the prism respectively, are
Angle of incidence, $$i=45^0$$
Angle of prism, $$A=60^0$$
Angle of minimum deviation, $$\delta_m =2i-A=30^0$$
$$\Rightarrow \mu=\dfrac{sin \left ( \dfrac{A+\delta_m}{2}\right )}{sin \dfrac{A}{2}}=\dfrac{sin\ 45^0}{sin\ 30^0}=\dfrac{2}{\sqrt{2}}=\sqrt{2}$$
In an experiment for determination of refractive index of glass of a prism by $$i-\delta\ plot$$ it was found that a ray incident at angle $${ 35 }^{ \circ }$$ suffers a deviation of $${ 40 }^{ \circ }$$ and that it emerges at angle $${ 79 }^{ \circ }.$$ In that case which of the following is closest to the maximum possible value of the refractive index?
For the angle of minimum deviation of a prism to be equal to its refracting angle, the prism must be made of a material whose refractive index:
For the angle of minimum deviation of a prism to be equal to its refracting angle, the prism must be made of a material whose refractive index :
The refracting angle of a prism is A, and refractive index of the material of the prism is cot (A/2). The angle of minimum deviation is :
For an isosceles prism of angle $$A$$ and refractive index $$\mu$$, it is found that the angle of minimum deviation $$\delta_m=A$$. Which of the following option(s) is/are correct?
The maximum refractive index of a prism which permits the passage of light through it, when the refractive angle of the prism is $${90^0}$$, is
Calculate the refractive index of glass with respect to water. It is given that refractive indices of glass and water with respect to air are $$\dfrac {3}{2}$$ and $$\dfrac {4}{3}$$ respectively.
When a ray of light falls on a prism, light gets dispersed because :
In the condition of minimum deviation position, a ray travels within the prism :
The refractive index of the material of prism, if a thin prism of angle $$A=6^o$$, produces a deviation $$\delta =3^o$$, is :