Mathematical and Physical Journal
for High Schools
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Problem P. 4775. (November 2015)

P. 4775. Thin copper and iron strips are riveted together along their length to form a bimetallic strip. The distance between the two strips is 1 mm. The bimetallic strip is flat at the temperature of \(\displaystyle 0\;{}^\circ\)C. What will the radius of the bent strip be at a temperature of \(\displaystyle 200\;{}^\circ\)C?

(4 pont)

Deadline expired on December 10, 2015.


106 students sent a solution.
4 points:77 students.
3 points:19 students.
2 points:5 students.
1 point:3 students.
0 point:1 student.
Unfair, not evaluated:1 solution.

Problems in Physics of KöMaL, November 2015