Physics-
General
Easy
Question
In a historical experiment to determine Planck’s constant, a metal surface was irradiated with light of different wavelengths. The emitted photoelectron energies were measured by applying a stopping potential. The relevant data for the wavelength (
) of incident light and the corresponding stopping potential (
) are given below:
Given that 
, Planck’s constant (in units of J s) found from such an experiment is
The correct answer is:
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