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Minimum Deviation

ntA light ray...

Question

ntA light ray of angle of incidence 40 degree emerged from the prism in minimum deviation position. Then what is the angle of incidence on the second surface?n

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A ray of light is incident on an equilateral glass prism placed in minimum deviation position.

How are angle of incidence and angle of emergence related to each other in this position of the prism?

Q. A monochromatic ray of light falls on a regular prism. What is the relation between angle of incidence and angle of emergence in the case of minimum deviation ?

Q. A ray of light is incident on one of the faces of the prism with an angle

40^{\circ}

with the surfaces. The angle of the prism is

60^{\circ}

. The emergent ray deviates through an angle

38^{\circ}

then, the angle of emergence is:

Q. An equilateral prism has angle of minimum deviation

30^{\circ}

when the angle of incidence is

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. The angle of deviation of emergent ray is

10 n

degrees if the ray is incident normally on a surface. n is (Write upto two digits after the decimal point.)

Q. A ray of light is incident on a prism

A B C

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\sqrt{3}

as shown in figure.
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A B C

is minimum.
(b) By what angle the second prism must be rotated, so that the final ray suffer net minimum deviation.

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