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Hollow-Cathode Lamps Emit Light with Very Sharp Linewidths

Question 12

Multiple Choice

Hollow-cathode lamps emit light with very sharp linewidths.Which mechanisms are responsible for broadening atomic emission line widths?
I pressure broadening
II ionization effect
III matrix effect
IV Doppler effect


A) I and IV
B) II,III,and IV
C) I,III,and IV
D) II and IV
E) III and IV

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