
What is central maximum diffraction?
Answer
134.4k+ views
Hint: When a ray of light strikes an object such that it bends around the corners or the edges to form a shadow is known as diffraction of light. For diffraction to take place, light needs to be in contact with some object or obstacle.
Complete step by step solution:
When the ray of light from an object or an obstacle strikes the slit, it bends due to the phenomenon of diffraction. When two crests or two troughs meet, it forms a region of high intensity and hence a maxima is formed. But when a crest and a trough of two different waves meet, it forms a region of low intensity and hence a minima is formed.
The central maximum diffraction is the brightest portion of the diffraction pattern where the intensity is maximum. It is there exactly at the center or in other words it is present at the zero level. In case of central maximum diffraction, dark and bright lines are there. The wavelength of light falling should be of the size of the object for the phenomenon of diffraction to take place.
The central maximum is the distance of the first minima from both sides to the center of the screen. The formula of maxima is written as:
$\theta = (n+\dfrac{1}{2})\dfrac{\lambda}{a}$
Here, $n=\pm 1, \pm 2,\pm 3.......$
And the formula of minima is given by,
$\theta=n \dfrac{\lambda}{a}$
Here, $n=\pm 1, \pm 2,\pm 3.......$
Note:It is important to note that as we move away from the center, the intensity of the light becomes weaker and weaker. For diffraction patterns to take place, the source of light should be monochromatic.
Complete step by step solution:
When the ray of light from an object or an obstacle strikes the slit, it bends due to the phenomenon of diffraction. When two crests or two troughs meet, it forms a region of high intensity and hence a maxima is formed. But when a crest and a trough of two different waves meet, it forms a region of low intensity and hence a minima is formed.
The central maximum diffraction is the brightest portion of the diffraction pattern where the intensity is maximum. It is there exactly at the center or in other words it is present at the zero level. In case of central maximum diffraction, dark and bright lines are there. The wavelength of light falling should be of the size of the object for the phenomenon of diffraction to take place.
The central maximum is the distance of the first minima from both sides to the center of the screen. The formula of maxima is written as:
$\theta = (n+\dfrac{1}{2})\dfrac{\lambda}{a}$
Here, $n=\pm 1, \pm 2,\pm 3.......$
And the formula of minima is given by,
$\theta=n \dfrac{\lambda}{a}$
Here, $n=\pm 1, \pm 2,\pm 3.......$
Note:It is important to note that as we move away from the center, the intensity of the light becomes weaker and weaker. For diffraction patterns to take place, the source of light should be monochromatic.
Recently Updated Pages
JEE Main 2025 Session 2 Form Correction (Closed) – What Can Be Edited

What are examples of Chemical Properties class 10 chemistry JEE_Main

JEE Main 2025 Session 2 Schedule Released – Check Important Details Here!

JEE Main 2025 Session 2 Admit Card – Release Date & Direct Download Link

JEE Main 2025 Session 2 Registration (Closed) - Link, Last Date & Fees

JEE Mains Result 2025 NTA NIC – Check Your Score Now!

Trending doubts
JEE Main 2025 Session 2: Application Form (Out), Exam Dates (Released), Eligibility, & More

JEE Main 2025: Conversion of Galvanometer Into Ammeter And Voltmeter in Physics

JEE Main 2025: Derivation of Equation of Trajectory in Physics

Wheatstone Bridge for JEE Main Physics 2025

Degree of Dissociation and Its Formula With Solved Example for JEE

Electric field due to uniformly charged sphere class 12 physics JEE_Main

Other Pages
JEE Advanced Marks vs Ranks 2025: Understanding Category-wise Qualifying Marks and Previous Year Cut-offs

Diffraction of Light - Young’s Single Slit Experiment

Dual Nature of Radiation and Matter Class 12 Notes: CBSE Physics Chapter 11

Electric Field Due to Uniformly Charged Ring for JEE Main 2025 - Formula and Derivation

Elastic Collisions in One Dimension - JEE Important Topic

Formula for number of images formed by two plane mirrors class 12 physics JEE_Main
