试题与答案

X线平均波长(λmean)与最短波长(λmin)的关系是 A．λmean(下标)＝3

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题型：单项选择题

题目：

X线平均波长(λmean)与最短波长(λmin)的关系是

A．λmean(下标)＝3λmin
B．λmean＝2.5λmin
C．λmean＝2λmin
D．λmean＝1.5λmin
E．λmean＝λmin

答案：

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