Diffraction definition spoon1/18/2024 ![]() ![]() We call this diffraction pattern because the light is diffracted (where it is painted). But, unlike the pattern produced by two slits, the light’s intensity does not seem to be distributed evenly in a single slit. It is a phenomenal discovery because it also helps produce the pattern using a single slit. The addition doubled the region’s luminosity while the negation rendered the region fully dark. In addition, when a ripple peak interferes destructively with another one, it can form a dark band. Here, one ripple’s peak interferes with another’s. He said such a pattern could only be formed by waves interfering with one another.Ī bright band is created while squeezing two waves between the slits. He proved that it is impossible to bend light or make it flow around an obstacle unless it obeys the Huygens principle. This discovery by Thomas Young vindicated Huygens. We call squeezed light an interference pattern, which can be seen as a uniform, alternating pattern of dark and bright bands. He made light squeeze through two slits kept adjacent to one another. However, he failed to illustrate the light’s wave nature, making it impossible for him to claim his achievement experimentally.Īfter nearly a decade, there came Thomas Young, a very enthusiastic British polymath who successfully illustrated the behaviour of light. He postulated a principle named Huygens’ Principle, stating that each point on a light wave could act as a source for a secondary wave capable of travelling at the same speed as light.įurthermore, he managed to explain the optical phenomena occurrence, namely reflection and refraction, using his light wave theory. His statement was contradictory to Newton’s beliefs. He suggested that the light behaves like a wave. In the 17 th century, a Dutch mathematician named Christian Huygens declared that light is not capable of behaving like a particle. ![]() This article will deeply discuss the diffraction phenomenon while explaining other related concepts and topics. In many cases, especially when an obstacle is very large, the stream of light does not flow around it. Moreover, it does not necessarily mean that the light stream must flow around the obstacle. Here, the light acts like water, which flows around the obstruction to reach our eyes. What is diffraction? Diffraction is the phenomenon that enables the light radiated by a source to be easily detectable even though there is an obstacle in between. Diffraction, polarisation and interference are the three major concepts essential for light wave nature.
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