Uploaded January 2025 | Updated September 2026, 3 weeks ago
My Physics Tutoring: zphysicslessons.net/physics-tutoring
Physics Olympiads Playlist: youtube.com/playlist?list=PLSygKZqfTjPCKus_q7vWTaRClR2hi6XFe
Here is a problem from the International Physics Olympiad in India from 2015. It derives Snell's Law from the basics of refractive index and Fermat's Principle of Least Time.
The entire problem can be found here.
Problem: ipho.olimpicos.net/pdf/IPhO_2015_Q2.pdf
Official Solution: ipho.olimpicos.net/pdf/IPhO_2015_S2.pdf
It can be used as practice for Physics Olympiads such as the British Physics Olympiad, International Physics Olympiad and similar difficult exams such as the JEE Advanced, Jee Main etc. It can be also be used as a challenge for A Level Physics.
My Physics Tutoring: zphysicslessons.net/physics-tutoring
Physics Olympiads Playlist: youtube.com/playlist?list=PLSygKZqfTjPCKus_q7vWTaRClR2hi6XFe
Here is a problem from the International Physics Olympiad in India from 2015. It derives Snell's Law from the basics of refractive index and Fermat's Principle of Least Time.
The entire problem can be found here.
Problem: ipho.olimpicos.net/pdf/IPhO_2015_Q2.pdf
Official Solution: ipho.olimpicos.net/pdf/IPhO_2015_S2.pdf
It can be used as practice for Physics Olympiads such as the British Physics Olympiad, International Physics Olympiad and similar difficult exams such as the JEE Advanced, Jee Main etc. It can be also be used as a challenge for A Level Physics.










