The width of the centre maxima on a screen is twice the distance between the dark fringes on either side at a distance L away: The pattern of light spreads out as you get further away from the screen (bigger L). The pattern of light widens as the hole gets smaller (smaller a).
<h3>What is Double slit experiment ?</h3>
The double-slit experiment involves directing a beam of light at a wall that has two vertical slits. The pattern that results from the light passing through the slits is captured on a photographicplate. A single line of light is seen when one slit is covered, aligned with the open slit.
In essence, waves passing through two closely spaced, parallel slits produce an interference pattern on a screen. Everyone should know this. This is true for all types of waves sound wave, light wave etc
there is not enough information about the liquid to know the force required for each. ie. stirring a cup of water is different than stirring a cup of pudding.
