Which of the following crystals are not suited for x-ray grating?
A. Topaz
B. Lithium fluoride
C. Calcium fluoride
D. Sodium fluoride
Answer:D
Which of the following crystals are not suited for x-ray grating?
A. Topaz B. Lithium fluoride C. Calcium fluoride D. Sodium fluoride
Explanation: The crystal which is not suited for x-ray grating is sodium fluoride. Other crystals which are suitable for x-ray grating are gypsum and sodium chloride.