A beam of x-rays of wavelength 0.20 nm is diffracted by a set of planes in a crystal whose separation is 3.1*10^-8 cm.The smallest angle between the beam and the crystal planes for which a reflection occurs is: A)0.70 rad B)0.33 rad C)0.066 rad D)0.033 rad E)0.0033 rad

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The Answer of A beam of x-rays of wavelength 0.20 nm is diffracted by a set of planes in a crystal whose separation is 3.1*10^-8 cm.The smallest angle between the beam and the crystal planes for which a reflection occurs is: A)0.70 rad B)0.33 rad C)0.066 rad D)0.033 rad E)0.0033 rad

A Beam of X-Rays of Wavelength 0