1 / 9

investory porject

good & project <br><br><br><br><br>

Darshana7
Download Presentation

investory porject

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1.  investigatory project TOPIC = TO STUDY THE PHENOMENON OF DIFFRACTION OF LIGHT NAME = Harshit panot CLASS = 12 'A' ?

  2. PELLENTESQUE UT RHONCUS DIAM ? Introduction Light is generally known to travel in straight lines, but under certain conditions, it can bend and spread. This bending of light around the edges of an obstacle or through a narrow slit is called diffraction. It is a key evidence of the wave nature of light. Diffraction becomes noticeable when the size of the slit or obstacle is comparable to the wavelength of light. When light passes through a narrow slit, it creates a pattern of bright and dark fringes on a screen. This pattern results from the interference of diffracted waves. MAURIS SIT AMET EUISMOD TORTOR, AC DAPIBUS TURPIS. fringe width, we can understand how factors like slit width and light wavelength affect diffraction. In this project, we aim to study the phenomenon of diffraction using a laser and different slits or gratings. By observing the diffraction pattern and measuring the Mauris posuere eu risus at iaculis This experiment helps us explore important concepts in wave optics and shows how diffraction plays a role in various optical technologies.

  3. ? Objective : # To study the phenomenon of diffraction of light when it passes through a narrow slit or diffraction grating, and to observe the resulting pattern of bright and dark fringes on a screen. # To explore how changing parameters such as the width of the slit, the distance to the screen, and the wavelength of the light source affect the formation and spacing of the diffraction fringes. # To gain a deeper understanding of wave optics by verifying that light does not always travel in straight lines, and that its wave nature becomes evident through diffraction.

  4. ? Slide 4: Theory # Diffraction is the bending or spreading of light when it passes through a narrow slit or around the edges of an object. It occurs significantly when the slit size is comparable to the wavelength of light. # The condition for minima (dark fringes) in single-slit diffraction is given by: asinθ=nλ where : a = width of the slit λ = wavelength of light θ = angle of diffraction n = order of minima (±1, ±2, ...)

  5. ? Definition of Diffraction :- - Diffraction is the phenomenon in which a wave bends or spreads as it passes through a narrow aperture or around the edges of an obstacle. It occurs most noticeably when the size of the obstacle or slit is comparable to the wavelength of the wave. ? Types of Diffraction : 1. Fresnel Diffraction : - Occurs when the source or screen is at a finite distance from the slit or obstacle. 2. Fraunhofer Diffraction - Occurs when both the source of light and the screen are at infinite (or very large) distances from the slit, and lenses are used to make the rays parallel.

  6. ? Importance of Slit Size and Wavelength : # Diffraction is noticeable when the slit width is comparable to the wavelength of light. # Smaller slits cause greater spreading of light waves. The wavelength of light influences the fringe spacing in the pattern.

  7. ? Significance of Diffraction : # Confirms the wave nature of light. # Used in designing and understanding

  8. ? Acknowledgement -- I would like to express my sincere gratitude to all those who supported me in completing this project on “To Study the Phenomenon of Diffraction of Light.” First and foremost, I thank my Physics teacher, [rakesh kumar], for their valuable guidance, encouragement, and for providing me with the opportunity to work on this project. Their clear explanations and support helped me understand the concept deeply. I also wish to thank my school and laboratory staff for providing the necessary resources and a suitable environment to carry out the experiment successfully. Finally, I am thankful to my parents, friends, and classmates for their motivation and constant support throughout the completion of this project.

  9. ? Conclusion : -Through this project, I successfully studied the phenomenon of diffraction of light and observed how light bends and spreads when it passes through narrow slits or obstacles. By using a laser and slit/grating setup, I was able to clearly view and measure the diffraction pattern formed on a screen. -The experiment demonstrated that the fringe width and pattern depend on the wavelength of light and the slit width, confirming the wave nature of light. I also applied the relevant mathematical formulas to compare theoretical and experimental results. -Overall, this project deepened my understanding of wave optics, and showed how diffraction plays a key role in various scientific and technological applications such as optical instruments, laser systems, and spectroscopy

More Related