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For a cyrstal, the angle of diffraction ...

For a cyrstal, the angle of diffraction `(2 theta)` is `90(@)` and the second order line has a d value of 2.28Å. The wavelength (inÅ) of X-rays used for Bragg's diffraction is

A

1.14

B

`2.00`

C

2.28

D

`4.00`

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Knowledge Check

  • To obtain a diffraction peak, for a crystalline solid with interplane distance equal to the wavelength of incident X-ray radiation, the angle of incidence should be

    A
    `90^(@)`
    B
    `0^(@)`
    C
    `30^(@)`
    D
    `60^(@)`

  • In a spectrometer experiment, monochromatic light is incident normally on a diffraction grating having 4.5xx10^5 lines per metre. The seond order line is seen at an angle of 30^@ to the normal. What is the wavelength of the light?

    A
    (a) `200nm`
    B
    (b) `556nm`
    C
    (c) `430nm`
    D
    (d) `589nm`

  • A 30mm wide diffraction grating produces a deviation of 30^@ in the second order principal maxima. The wavelength of light used is 600nm . The total number of slits in the grating is:

    A
    (a) `12500`
    B
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    C
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