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Recent questions tagged refraction-by-prism

The refractive indices of flint glass for red and violet light are 1.613 and 1.632 respectively. Find the angular dispersion produced by a thin prism of flint glass having refracting angle $15 ^{\circ}$

asked Apr 19, 2014 by balaji.thirumalai

1 answer

A right angle prism $(45^{\circ} - 90^{\circ}- 45^{\circ})$ of refractive index n has a plate of refractive index $n_1\;( n_1 < n ) $ to its diagonal wall. The assembly is in air. A ray is incident at AB . Then the angle of incidence at AB for which the ray strikes the diagonal face at critical angle is :-

asked Feb 20, 2014 by meena.p

1 answer

The refractive index of a prism is 2. This prism can have a maximum refracting angle of

asked Feb 19, 2014 by meena.p

1 answer

A ray of light passes through an equilateral prism such that the angle of incidence and the angle of emergence are equal to $\large\frac{3}{4}th$ of the angle of prism. The angle of minimum deviation is

asked Feb 18, 2014 by meena.p

1 answer

An equi - convex lens of crown and equi convex lens of flint glass make an achromatic system. The radium of curvature of convex lens is $0.54\;m$. If the focal length of combination for mean colour is 1.5 m and $RI$ for crown glass are $\mu _R= 1.53$ and $\mu_v =1.55$ Then the dispersive power of flint glass is

asked Feb 14, 2014 by meena.p

1 answer

A prism of crown glass refracting angle of $50^{\circ}$ and mean refractive index $=1.51$ is combined with one flint glass prism of refractive index $=1.65$ to produce no deviation Then the angle of flint glass is

asked Feb 12, 2014 by meena.p

1 answer

The dispersive power of crown and flint glasses are 0.03 and 0.05 respectively . If difference in refractive indices of blue and red colours is 0.014 for crown glass and 0.023 for flint glass . Then the angle of two prisms for a deviation of $10^{\circ}$ (with out dispersion )

asked Feb 12, 2014 by meena.p

1 answer

Calculate the dispersive power for crown glass from given data. $\mu_v= 1.523 $ and $\mu_R=1.5145$

asked Feb 12, 2014 by meena.p

1 answer

Find the dispersion produced by a thin prism of $18^{\circ}$ having refractive index fro red light $= 1.56$ and for violet light $=1.68$

asked Feb 12, 2014 by meena.p

1 answer

What should be the value of angle $\theta$ so that light entering normally through the surface AC of a prism of refractive index $(n= \large\frac{3}{2})$ does not cross the second refracting surface AB.

asked Feb 12, 2014 by meena.p

1 answer

A ray of light is incident on a prism of refractive index $\mu =\sqrt 2$ It is found that the deviation caused is $30^{\circ}$ The angle of prism is $60^{\circ}$ What will be the angle between the ray inside the prism and the base of the prism .

asked Jan 24, 2014 by meena.p

1 answer

A prism of refractive index $\mu =1.5 $ of vertical angle $6 ^{\circ}$ is placed in front of a mirror. A ray of light is incident normally on one of the face of the prism as shown. What is the total deviation caused by the system.

asked Jan 24, 2014 by meena.p

1 answer

A right angled prism ABC is dipped in water . such that the surface AB is in air as shown. A ray of light is normally. What must be the possible value of $\theta$ so that the say gets totally reflected at AC to reach surface BC.

asked Jan 16, 2014 by meena.p

1 answer

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