Phenomenon of luminescence

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Reference no: EM13948182

1. (a) In your own words describe briefly the phenomenon of luminescence.

(b) What is the distinction between fluores- cence and phosphorescence?

2. In your own words, briefly describe the phe- nomenon of photoconductivity.

3. Briefly explain the operation of a photo- graphic lightmeter.

4. In your own words, describe how a ruby laser operates.

5. Compute the difference in energy between metastable and ground electron states for the ruby laser.

Reference no: EM13948182

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