- ANewton
- ✓Young
- CMaxwell
- DHuygens
Newton's particle theory remained accepted for a long time when it was challenged by the double$-$slit experiment of Thomas Young $(1773-1829)$ in $1801$. This experiment clearly established that light coming from two coherent sources interferes and produces maxima and minima depending on the path difference.
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Statement $I:$ Out of microwaves, infrared rays and ultraviolet rays, ultraviolet rays are the most effective for the emission of electrons from a metallic surface.
Statement $II:$ Above the threshold frequency, the maximum kinetic energy of photoelectrons is inversely proportional to the frequency of the incident light.
In the light of above statements, choose the correct answer from the options given below: