Topic:-Photoelectric Effect
1. Define photoelectric effect.
2. How does the intensity of light effect photoelectrons?
3. What is threshold frequency?
4. Name the scientist who demonstrated photoelectric effect experiment.
5. What did Einstein explain about photoelectric effect?
6. What is the relation between kinetic energy and frequency of the photoelectrons?
7. Calculate energy of 2mole of photons of radiation whose frequency is 5´1014Hz.
8. What is emission and absorption spectra?
9. What transition in the hydrogen spectrum would have the same
wavelength as the Balmer transition, n = 4 to n = 2 of He+ spectrum?
10. Spectral lines are regarded as the finger prints of the elements. Why?
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