BRAINLIEST IF CORRECT ((FILL IN THE BLANKS)) Bats and marine mammals are able to locate prey and to communicate by sending and receiving soundwaves that echo off of surfaces. Echoes demonstrate the wave property of (blank)

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.