Huygens noted interference phenomena, as did Young, but the person who demonstrated conclusively that light was a waveform was Fresnel, who calculated that there should be a bright spot of light at the centre of the shadow of a circular object, and the demonstrated that this previously unobserved phenomenon actually occurs.
i cant answer it
photoelectric effect
Interference.
penis
The amplitude of a light wave shows the light's brightness relative to waves of similar wavelength.
The wave behavior can be seen in phenomena such as interference.The particle behavior can be seen, among other things, in the photoelectric effect.
It can be reflected, refracted and polarised. It also shows the phenomenon of interference. (Young's double slit experiment) The above are the properties of waves. Light shows these properties and thus, this defines light as a wave.
Light isanalogous in many ways to sound and many of the equations used to describe sound also apply to light, but there are limitations. Sound waves don't really polarize the way light waves do for example. Light also displays some characteristics of particle behavior that contradict its wave behavior - again making it different from sound.
Photo electric emission
penis
Interference, diffraction.
Interference, diffraction.
The amplitude of a light wave shows the light's brightness relative to waves of similar wavelength.
The wave model. More specifically, it shows that light is a transverse wave - a longitudonal wave can't be polarized.
The wave behavior can be seen in phenomena such as interference.The particle behavior can be seen, among other things, in the photoelectric effect.
It can be reflected, refracted and polarised. It also shows the phenomenon of interference. (Young's double slit experiment) The above are the properties of waves. Light shows these properties and thus, this defines light as a wave.
-- If the detector is designed to detect wave characteristics, then light exhibits all the characteristics and behavior of a wave when it encounters that detector. -- If the detector is designed to detect particle characteristics, then light exhibits all the characteristics and behavior of a particle when it encounters that detector.
Light isanalogous in many ways to sound and many of the equations used to describe sound also apply to light, but there are limitations. Sound waves don't really polarize the way light waves do for example. Light also displays some characteristics of particle behavior that contradict its wave behavior - again making it different from sound.
Light exhibits the qualities of both a particle and a wave. Wave-particle duality is a fundamental concept of quantum mechanics, and it is used to assist in explaining the nature of, in this case, light. Light does, indeed, exhibit both the qualities of a particle and those of a wave. And why is light a wave? Because it is. It is a wave because being a wave is an integral part of its fundamental nature. We cannot separate the wave characteristic from light and still have light. Light behaves like a wave, and that is why it is a wave. Perhaps it might be more helpful to say light behaves as it does, and "wave" is the word we use to describe its behavior. Perhaps that perspective, the view that light does its thing and we call what it does a wave, will make it easier to understand and accept that light is a wave. A couple of links are provided to related articles posted by our friends at Wikipedia, where knowledge is free.
Light shows wave properties through different conditions such as reflection, diffraction, refraction, Poisson's spot, polarization, and interference.