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The refractive indices of flint glass fo...

The refractive indices of flint glass for red and violet lights are 1.613 and 1.632, respectively. Find the angular dispersion produced by a thin prism of flint glass having refracting angle `5^@`.

Text Solution

Verified by Experts

Angle of dispersion:
`delta_(v)-delta_(r)=(mu_(v)-mu_(r))A`
`=(1.632-1.613)5=0.095^@`
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Knowledge Check

  • The angle of prism is 5^(@) and its refractive indices for red and violet colours are 1.5 and 1.6 respectively. The angular dispersion produced by the prism is

    A
    `7.75^(@)`
    B
    `5^(@)`
    C
    `0.5^(@)`
    D
    `0.17^(@)`

  • The refractive indices of violet and red light are 1.54 and 1.52 respectively if the angle of prism is 10^(@) then the angular dispersion is

    A
    0.02
    B
    0.2
    C
    3.06
    D
    30.6

  • The refractive indices of flint glass prism for violet, yellow and Red colours are 1.790, 1.795 and 1.805 respectively, find dispersive power of the flint glass.

    A
    `0.00887 `
    B
    `0.01887 `
    C
    `0.00944 `
    D
    `0.0377 `