In Her Physics Laboratory, Mathilda Shines Electromagnetic Radiation on a Material

question 37

Short Answer

In her physics laboratory, Mathilda shines electromagnetic radiation on a material and collects photoelectric data to determine Planck's constant. She measures a stopping potential of 5.82 V for radiation of wavelength 100 nm, and 17.99 V for radiation of wavelength 50.0 nm. (1 eV = 1.60 × 10^-19 J, c = 3.00 × 10⁸ m/s)
(a) Using Mathilda's data, what value does she determine for Planck's constant?
(b) What is the work function of the material Mathilda is using, in electron-volts?

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Identifying Problems

The process of recognizing issues that can impede progress or cause conflict within a project or organization.

Choosing Alternatives

The process of evaluating and deciding between two or more options in decision-making.

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A decision-making framework based on the assumption that individuals choose the most rational and logical option that maximizes benefits while minimizing costs.

Implement

Implement refers to the process of putting plans, strategies, or tools into effect to achieve desired outcomes.