Problem M. 443. (October 2025)

M. 443. Using the light sensor of a mobile phone, show that light intensity is inversely proportional to the square of the distance from a point source of light. How should we choose the experimental conditions in order to prove this relationship as accurately as possible?

(6 pont)

Deadline expired on November 17, 2025.

Statistics:

19 students sent a solution.
6 points:	Erdélyi Dominik, Hegedüs Márk, Sőtér Hunor Marcell, Sőtér Jázmin Sára, Winhoffer Júlia.
5 points:	Hoffmann Gréta , Horváth Péter, József Áron, Kiss 666 Kinga Lili, Patócs 420 Péter.
4 points:	2 students.
3 points:	1 student.
0 point:	2 students.

Problems in Physics of KöMaL, October 2025