Select the correct statements: (A) Bragg's equation is valid only if \( 2 dm \lambda \). (B) Pre...
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0Select the correct statements:
(A) Bragg's equation is valid only if \( 2 dm \lambda \).
(B) Presence of excess \( \mathrm{Li} \) in LiCl develops pink colour in it.
(C) Greater is the number of F-centres, greater is the intensity of colour developed.
(D) Conducting power of \( \mathrm{Si} \) and \( \mathrm{Ge} \) is increased dramatically if impurities of \( \mathrm{P} \) or As are incorporated into their lattice
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