Write short notes on action spectra and absorption spectra.

Write a short note on atomic spectra.

Write short notes: Reflex action

Write short note on reflex action.

Explain emission line spectra and absorption spectra.

Distinguish between emission spectra and absorption spectra.

What is the difference between emission spectra and absorption spectra?

What are emission and absorption spectra ?

In the following figure, one of the spectra is emission spectra and other is absorption spectra of the same element. Identify which is which?