Lecture
This lecture covers exercises related to light deflection and gravitational lensing. The first exercise involves deriving the trajectory in a spherically symmetric potential and understanding the concept of monovistic particles. The second exercise focuses on calculating the deflection angle of light rays near massive bodies, such as the sun, using general relativity. The final exercise explores the role of massive bodies as gravitational lenses, affecting the path of light from a distant source to an observer. Through these exercises, students will gain a deeper understanding of how gravity influences the path of light in the universe.