Question

In Young’s double-slit experiment using monochromatic light, the interference pattern consists of a central _____.

A) dark band with multi-colored bands on either side
B)bright band with alternate dark and bright bands on either side
C) Dark band with alternate bright and dark bands on either side
D)white band with multi-colored bands on either side

Answer 1

B)bright band with alternate dark and bright bands on either side

Step-by-step explanation:

In young's double slit experiment we verify the wave characteristic of light

In this wave phenomenon we can see that on screen there is path difference of waves coming from two slits of light source due to which the total intensity of light on the screen will change accordingly

At the central point of the screen the path difference of light is ZERO

due to this the net intensity of the light on the central part of the screen will be maximum.

Since it is a monochromatic light experiment so now when we move on either side on the central point the path difference will change and hence we will get the maximum and minimum intensity alternatively on the screen

So correct answer will be

B)bright band with alternate dark and bright bands on either side

Answer 2

In young's double slit experiment that uses monochromatic light the interference pattern formed has Central bright band with alternate dark and bright band That is option B

Explanation-

In this young experiment two small slits Namely a and b are formed on the screen and a monochromatic light is focused on them. Wavelets come out of of this lets scintillating and overlapping each other. This we get from huyginns principal, thus forming alternate dark and bright bands with bright band at center and all bands are about one meter apart.