Which of the following experiments confirms that light behaves in a wave like manner?
When light has it's frequency adjusted, the speed of the light changes.
When light is given more energy, it is brighter.
When light is sent through a series of mirrors, it bends it's way backwards.
When laser light is sent through two slits, an interference pattern of bright and dark bands appears.
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better read up on this famous eperiment
The experiment that confirms that light behaves in a wave-like manner is when laser light is sent through two slits, and an interference pattern of bright and dark bands appears.
To understand how this experiment confirms the wave nature of light, first, let's understand what interference is. Interference occurs when two or more waves overlap and create regions of constructive and destructive interference, resulting in a pattern of bright and dark areas.
In this experiment, a laser light source is used to produce a monochromatic (single wavelength) beam of light. This beam is directed towards a barrier with two narrow slits. When the light passes through these slits, it diffracts (spreads out) and forms two separate wavefronts. These wavefronts then intersect and overlap to create an interference pattern on a screen placed behind the slits.
The interference pattern consists of alternating bright and dark bands or fringes. The bright fringes occur where the constructive interference of the two wavefronts takes place, leading to an increase in the intensity of light. On the other hand, the dark fringes occur where the destructive interference causes the cancellation of light intensity.
This interference pattern observed in the double-slit experiment is characteristic of waves and can be explained by wave interference phenomena. It provides strong evidence that light behaves as a wave.
To perform this experiment, you would need a laser light source, a barrier with two narrow slits, and a screen to observe the interference pattern. Place the barrier with the slits in the path of the laser beam, ensuring that the light passes through the slits and falls on the screen. Adjust the distance between the slits and the screen to obtain a clear, well-defined interference pattern. By observing the resulting pattern, you can confirm that light exhibits wave-like behavior.