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A sample of a crystalline solid scatters...

A sample of a crystalline solid scatters a beam of X-rays of wavelength `70.93` pm at an angle `2 theta` of `14.66^(@)`. If this is a second-order reflection `(n = 2),` calculate the distance between the parallel planers of atoms from which the scattered beam appears to have been reflected.

Text Solution

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The correct Answer is:
556.3 pm
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Knowledge Check

  • Calculate the wavelength of X rays which produces a diffraction angle 2theta equal to 16.80^@ for a crystal assume first order diffraction with inter particle distance in crystal of 0.2nm

    A
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    B
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    C
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    D
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  • The second order Grag diffraction of X-rays with lamda=1.0 Å from a set of parallel planes in a metal occurs at an angle of 60^(@) . The distance between the scattering planes in the crystal is

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    B
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    C
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    D
    1.15 Å

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    The first order reflection of a beam of X-rays of wavelength 1.54 Ã… from the (100) face of a crystal of the simple cubic type occurs at an angle of 11.29^(@) . Calculate the length of the unit cell.

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