explain young double slit experiment
Answers
Explanation:
Young’s double-slit experiment uses two coherent sources of light placed at a small distance apart, usually, only a few orders of magnitude greater than the wavelength of light is used. Young’s double-slit experiment helped in understanding the wave theory of light which is explained with the help of a diagram. A screen or photodetector is placed at a large distance ’D’ away from the slits as shown.
Young's Double Slit Experiment
Derivation of Young’s Double Slit Experiment
The original Young’s double-slit experiment used diffracted light from a single source passed into two more slits to be used as coherent sources. Lasers are commonly used as coherent sources in the modern-day experiments.
Table of Content
Derivation
Position of Fringes
Shape of Fringes
Intensity of Fringes
Special Cases
Displacement of Fringes
Constructive and Destructive Interference
Principle of Young's Double Slit Experiment
Young’s Double Slit Experiment
Each source can be considered as a source of coherent light waves. At any point on the screen at a distance ‘y’ from the centre, the waves travel distances l1 and l2 to create a path difference of Δl at the point in question. The point approximately subtends an angle of θ at the sources (since the distance D is large there is only a very small difference of the angles subtended at sources).
Derivation of Young’s Double Slit Experiment
Consider a monochromatic light source ‘s’ kept at a considerable distance from two slits s1 and s2. S is equidistant from s1 and s2. s1 and s2 behave as two coherent sources, as both bring derived from S.
The light passes through these slits and falls on a screen which is at a distance ‘D’ from the position of slits s1 and s2. ‘d’ be the separation between two slits.
If s1 is open and s2 is closed, the screen opposite to s1 is closed, only the screen opposite to s2 is illuminated. The interference patterns appear only when both slits s1 and s2 are open.
Setup of Young’s Double Slit Experiment
When the slit separation (d) and the screen distance (D) are kept unchanged, to reach P the light waves from s1 and s2 must travel different distances. It implies that there is a path difference in Young’s double slit experiment between the two light waves from s1 and
Answer:
youngs double slit experiment was a experiment conducted bt young.
what he did was he used a source of light and two slits ..and a screen tom obtain light..to shoe nterfernce
Explanation:everyone expeted to set of light due to newtons theory and corpuscular theory. Quite contrary he recived many band of light ..which was like a bright band followed by a dark and so on..the number of depend on the light and the distance between the light..
There was center bright band then dark band and so oon..ther are many eqns regaring this...is u like to have it please inform me..
and reason for this phenomenon was the path difference betwwen the light inter ference pattern..