For an equilateral prism,it is observed that | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) For an equilateral prism,the angle of the prism is $A = 60^{\circ}$.When a ray strikes grazingly at one face,the angle of incidence $i_1 = 90^{\ci

Vedclass · Accepted Answer

$2$

Vedclass · Answer

(C) For an equilateral prism,the angle of the prism is $A = 60^{\circ}$.When a ray strikes grazingly at one face,the angle of incidence $i_1 = 90^{\circ}$.When it emerges grazingly at the other face,the angle of emergence $i_2 = 90^{\circ}$.According to the prism formula,$r_1 + r_2 = A$. Since the ray is symmetric,$r_1 = r_2 = \frac{A}{2} = \frac{60^{\circ}}{2} = 30^{\circ}$.Using Snell's Law at the first face: $\mu = \frac{\sin i_1}{\sin r_1}$.Substituting the values: $\mu = \frac{\sin 90^{\circ}}{\sin 30^{\circ}} = \frac{1}{0.5} = 2$.

For an equilateral prism,it is observed that when a ray strikes grazingly at one face,it emerges grazingly at the other. Its refractive index will be

Similar Questions

When white light is passed through a prism, which colour shows the minimum deviation?

The graph between the angle of deviation $(\delta)$ and the angle of incidence $(i)$ for a triangular prism can be represented by:

$A$ ray is incident at an angle of incidence $i$ on one surface of a small angle prism (with angle of prism $A$) and emerges normally from the opposite surface. If the refractive index of the material of the prism is $\mu$,then the angle of incidence is nearly equal to

One side of an equilateral prism is painted by a transparent material of refractive index $n_2$. The refractive index of the prism is $1.6$. The minimum value of $n_2$ required for total internal reflection from the painted face is . . . . . . .

The refractive index of a prism with apex angle $A$ is $\cot(A/2)$. The angle of minimum deviation is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module