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What phenomenon is named after Johannes Stark?

  • Newton's Law

  • The Stark effect

  • The Lenz law

  • The Planck Constant

Answer

The Stark effect is the splitting of spectral lines of atoms into multiple components in the presence of an external electric field. It is named after the German physicist Johannes Stark, who discovered it in 1913. The effect is caused by the interaction of the electric field with the electrons in the atom, which causes them to shift their energy levels.
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