Question
Inorganic Chemistry Question on Crystal systems and lattices
A first order reflection from the (111) planes of a cubic crystal was observed at a glancing angle of 11.5∘ when X-rays of wavelength 151 pm were used. The length of the side of the crystal is (Given sin 11.5°=0,199)
A
657 pm
B
379 pm
C
786 pm
D
752 pm
Answer
657 pm
Explanation
Solution
The correct answer is (A) :657 pm