Mathematical and Physical Journal
for High Schools
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Problem P. 3933. (December 2006)

P. 3933. A wheel, which has five spokes, turns 1200 in every minute. It is illuminated by a fluorescent lamp operated from a mains electricity supply. What is its apparent number of turns?

(3 pont)

Deadline expired on January 11, 2007.


97 students sent a solution.
3 points:52 students.
2 points:29 students.
1 point:9 students.
0 point:7 students.

Problems in Physics of KöMaL, December 2006