Problem P. 3943. (January 2007)
P. 3943. John showed his friends that with his glasses he can collect the Sun's rays and light a piece of paper. When the Sun is shining why don't his glasses burn the skin near his eyes?
(3 pont)
Deadline expired on February 12, 2007.
Statistics:
116 students sent a solution. 3 points: 90 students. 2 points: 12 students. 1 point: 9 students. 0 point: 4 students. Unfair, not evaluated: 1 solutions.
Problems in Physics of KöMaL, January 2007