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.
Statistics:
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