Welcome to Westonci.ca, where your questions are met with accurate answers from a community of experts and enthusiasts. Experience the ease of finding quick and accurate answers to your questions from professionals on our platform. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

To study the energy of photoelectrons we measure:__.
A. Their mass. their temperature.
B. The potential difference required to stop them.
C. The distance they travel in a given time.
D. The time they take to go a given distance.