JEE Main Chemistry question
Not in JEE Main or NEET syllabus
Each question contains ASSERTION (Assertion) and REASON (Reason). Each question has the 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
Statement 1: Space or crystal lattice have symmetry of the arrangement of points. Statement 2: is known as Bragg's equation.
Answer: (B)
Solution
A space (crystal) lattice is indeed a regular, symmetric arrangement of points in space, so Statement 1 is true. Bragg's equation, , relating X-ray wavelength, interplanar spacing and diffraction angle, is also a true and correctly stated relation. However, Bragg's equation is a
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