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