Peng, H. 2025. Double Slit Experiments Showing that Light is Photons Producing both Non-Interference-Pattern and Interference-Pattern in Same Experiment, and thus, Wavefunction Represents Simply Useful Tool Describing Interference-Pattern. European Journal of Applied Sciences. 13, 05 (Sep. 2025), 166–181. DOI:https://doi.org/10.14738/aivp.1305.19399.