1) The emission spectrum of a hollow cathode lamp for molybdenum was found to have a...

60.1K

Verified Solution

Question

Chemistry

1) The emission spectrum of a hollow cathode lamp for molybdenumwas found to have a sharp peak at 313.3 nm as long as the lampcurrent was less than 50 mA. At higher currents, however, the peakdeveloped a cup-like crater at its maximum. Explain. 2) Why doesthe cathode of the hollow cathode lamp have a cylindrical shape?Why is an element lamp required as the source for AA? Which copperline was used for analysis of copper in the CAM experiment?

Answer & Explanation Solved by verified expert

4.4 Ratings (556 Votes)

1 This phenomenon is attributed toselfabsorption Selfabsorption is a process observed when a HCLlamp is operated at high currents where sputtering of a largenumber of atoms takes place Most atoms do not get enoughexcitation energy in this process and thus absorb emitted radiationfrom other excited atoms within the lamp The result is a splittingof the atomic line where the center of the line would have aminimum exactly at the See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member