Measuring the constant of Planck

Original Title:

    Measuring the constant of Planck

        Keywords:

        light optics waves properties of light

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          Proposed practical is suitable for students aged 18 - 19 years. They will determine Planck’s constant using the photoelectric effect. For each frequency, adjust the potential divider until the stopping potential has been reached. Draw the graph of stopping potential versus frequency and determine Planck’s constant using tangent of angle or angular quotient.
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