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The refracting angle of a prism is A and...

The refracting angle of a prism is `A` and refractive index of the material of the prism is `cos(A//2)`. The angle of minimum deviation is

A

`pi-2A`

B

`pi-A`

C

`pi/2-2A`

D

`pi/2-A`

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Knowledge Check

  • 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

    A
    `180^(@) - 3A`
    B
    `180^(@)` - 2A
    C
    `90^(@)` - A
    D
    `180^(@)`+2A

  • The refracting angle of a prism is A, and refractive index of the material of the prism is cot (A//2). the angel of minimum deviation is

    A
    `180^(@)-3A`
    B
    `180^(@)-2A`
    C
    `90^(@)-A`
    D
    `180^(@)+2A`

  • The refracting angle of a prism is A and refractive index of the material of prism is cot(A//2) . The angle of minimum deviation will be

    A
    `180^(@)-3A`
    B
    `180^(@)+3A`
    C
    `90^(@)-3A`
    D
    `180^(@)-2A`
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