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?

---

Definitions:

Highly Competent Followers

Individuals who exhibit a high level of skill, expertise, and commitment in their roles, contributing significantly to organizational success.

Access To Technology

The extent to which individuals or communities have the means to obtain and use digital devices and the Internet.

Katz's Model

A theory developed by Robert L. Katz suggesting that effective leaders need three essential skills: technical, human, and conceptual.

Technical Skills

Abilities and knowledge needed to perform specific tasks. They involve the understanding and proficiency in a particular specialized field or activity.