The property of light that challenges the wave theory is the photoelectric effect. Unlike the expectations of wave theory, the photoelectric effect demonstrates that the emission of electrons depends on the frequency, not the intensity, of light. This phenomenon supports the particle nature of light proposed by quantum theory rather than the classical wave theory.
The property of light that does not support the wave theory of light is the photoelectric effect. The photoelectric effect is the phenomenon where light shining on a metal surface causes the emission of electrons from the metal.
According to classical wave theory, the intensity of light should determine the kinetic energy of emitted electrons. However, experimental observations, particularly those conducted by Albert Einstein, showed that the photoelectric effect depends on the frequency of light, not its intensity.
This discovery was a key aspect of the development of quantum theory, which posits that light can behave as discrete packets of energy called photons. The photoelectric effect is better explained by the particle nature of light as described by quantum theory, challenging the wave theory of light in this specific context.
The probable question may be:
Which of the following property of light does not support wave theory of light?
Light obeys laws of reflection and refraction
Light waves get polarized
Light shows photoelectric effect
Light shows interference