Find out the plancks constant


Question: A metal surface illuminated by 8.5 x 1014 Hz light emits electrons whose maximum energy is 0.52eV. The same surface illuminated by 12.0 x 1014 Hz hight emits electrons whose maximum energy is 1.97eV. From these data find Planck's constant and the work function of the surface.

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Physics: Find out the plancks constant
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