Why do we use a slit instead of a hole in a Young experiment?
Answers
Answer:
The answer to this question is that two slits provide two coherent light sources that then interfere constructively or destructively. Young used sunlight, where each wavelength forms its own pattern, making the effect more difficult to see.
Answer: In modern physics, the double-slit experiment is a demonstration that light and matter can display characteristics of both classically defined waves and particles; moreover, it displays the fundamentally probabilistic nature of quantum mechanical phenomena.
Explanation: This type of experiment was first performed, using light, by Thomas Young in 1801, as a demonstration of the wave behaviour of light. At that time it was thought that light consisted of either waves or particles. With the beginning of modern physics, about a hundred years later, it was realized that light could in fact show behaviour characteristic of both waves and particles.