A student stands in a school hallway. A wall separates a classroom from the student. The student in the hallway cannot see inside the classroom but hears noises from within the classroom. Which of these best explains why the student hears the noises but cannot see into the classroom?
Sound waves are absorbed by the wall, and visible light waves are transmitted through the wall.
Sound waves are transmitted through the wall, and visible light waves are reflected by the wall.
Sound waves are reflected by the wall, and visible light waves are refracted by the wall.
Sound waves are reflected by the wall, and visible light waves are absorbed by the wall.