The concept of work function was given by:
Correct answer: B. Einstein
- A. Bohr
- B. Einstein
- C. Rutherford
- D. None of these option is correct
Explanation
Electronic work function, energy (or work) required to withdraw an electron completely from a metal surface. This energy is a measure of how tightly a particular metal holds its electrons-that is, of how much lower the electron's energy is when present within the metal than when completely free.The phenomenon was first observed (1883) by Thomas A. Edison as a passage of electricity from a filament to a plate of metal inside an incandescent lamp.
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About Dawn of Modern Physics
Classical physics cannot explain blackbody radiation and related observations, leading to Planck’s quantum theory, in which energy is emitted or absorbed in discrete packets. Photons provide the particle model of light, with energy and momentum linked to frequency and wavelength, including the photoelectric effect and its threshold frequency.
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