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Bragg's X- rays diffraction studees are ...

Bragg's X- rays diffraction studees are successful when

A

`lambda gt 2d`

B

`lambda le 2d`

C

`lambda ge 2d`

D

`lambda = d`

Text Solution

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The correct Answer is:
c
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Knowledge Check

  • In Bragg's X-rays diffraction studies , 100 pm has second - order diffraction at glancing angle of 30^(@) Its interplanar spacing will be

    A
    `200` pm
    B
    `150` pm
    C
    `100` pm
    D
    `144` pm

  • Bragg's equation for diffraction is

    A
    `2d - lambda = n sin phi`
    B
    `2dsin phi =nlambda`
    C
    `lambda= sin phi`
    D
    `2lambda sin phi = nd`

  • Bragg's law for X-rays is

    A
    `d sin theta = 2 n lamda`
    B
    `2d sin theta = n lamda`
    C
    `n sin theta = 2 lamda d`
    D
    None of these