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Fill in blank Increasing the distance between a pair of slits through which light is being shone...

Question:

Fill in blank Increasing the distance between a pair of slits through which light is being shone would _ the distance between nodal lines appearing on a screen

Wave Phenomenon:


The interference pattern formed in slit experiment is due to the wave nature of the light which according to Huygens principle states that every light is the disturbance of concentric wave fronts in which every secondary wave front acts as the source of light waves.

Answer and Explanation:


The spacing between the slits or in other words the distance between source of light is inversely proportional to the distance between and anti-nodal lines. This means that on increasing the slit distance the distance between nodal lines will decrease or come closer.


Note

The necessary conditions for the interference are,

1.) The source of light from the slits must be coherent.

2.) The source of light must be monochromatic.


Learn more about this topic:

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Constructive and Destructive Interference

from CLEP Natural Sciences: Study Guide & Test Prep

Chapter 8 / Lesson 16
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