Young's Double Slit Experiment is a famous physics experiment that demonstrates the wave-like behavior of light. In the experiment, a beam of light is directed at a barrier with two closely spaced slits. When light passes through the slits, it creates an interference pattern on a screen behind the barrier, showing alternating bright and dark bands. This pattern occurs because light waves from each slit overlap and combine. When the waves are in phase, they reinforce each other, creating bright spots. When they are out of phase, they cancel each other out, resulting in dark spots. This experiment highlights the dual nature of light, behaving both as a particle and a wave.