A_convergent_beam_is_obtained_by_placing_which_of_the_following_materi – McqOptions

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1.	A_convergent_beam_is_obtained_by_placing_which_of_the_following_material_between_the_X-ray_source_and_the_sample?$
A.	Soil particles
B.	Single crystal of carbon
C.	Linear double crystal of graphite
D.	Bent single crystal of quartz
Answer» E.

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