Two friends are at a concert. they discover a location in the auditorium where the band sounds significantly louder than in other places. what is the best explanation for the strengthening of the sound?

destructive interference

medium temperature

resonance

constructive interference

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation

Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?

What types of radiation make up the electromagnetic spectrum?