Mathematical and Physical Journal
for High Schools
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# Problem P. 4193. (October 2009)

P. 4193. What is the distance between the optical axis of a glass sphere of radius R and that light ray which travels parallel to the optical axis and which leaves the glass at the point where the optical axis intersects the sphere? (The refractive index is 1.6.)

(4 pont)

Deadline expired on November 10, 2009.

Sorry, the solution is available only in Hungarian. Google translation

Megoldás. $\displaystyle d=0{,}96\,R.$

### Statistics:

 90 students sent a solution. 4 points: Benyó Krisztián, Bolgár Dániel, Csizmadia Luca, Filep Gábor, Hajdú Bianka, Horváth Lóránd, Kollarics Sándor, Martinka Mátyás, Mázik László, Molnár Alexandra, Szatmári András Zoltán, Tóth Barnabás, Vuchetich Bálint, Zalka Attila Gábor. 3 points: 66 students. 2 points: 4 students. 1 point: 2 students. 0 point: 1 student. Unfair, not evaluated: 3 solutionss.

Problems in Physics of KöMaL, October 2009