NCERT Class 12 Physics Chapter 10 Wave Optics Notes (Handwritten Notes & PDF Download)

Physics is a very important subject for students. It may be hard for some students. For helping students here we have shared NCERT Class 12 Physics Chapter 10 Wave Optics Handwritten Notes.

The Wave Optics notes is a best resource for students who are preparing for their board exam because it compile the entire lesson in short and include every important topic.

NCERT Class 12 Physics Chapter 10 Wave Optics Notes

Next Chapter: Dual Nature of Radiation and Matter
Previous Chapter: Ray Optics and Optical Instruments

Other Subjects:
Class 12 Biology Notes
Class 12 Chemistry Notes

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Wave Optics Notes PDF

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Key Points: Wave Optics Notes PDF

Wave Front: A light source is a point which emits disturbance in all directions. In a homogeneous medium, the disturbance reaches all those particles of the medium in phase, which are Located at the same distance from the light and hence at all the time, every particle must be vibrating in phase with each other. The locus of all the particles of medium, which at any instant vibrating in the same phase are called ‘Wave front’.

Ray of Light: The path along which light travels is known as a ray of light. If we draw an arrow normal to the wave front and which points in the direction of propagation of disturbance represents a ray of light. In a may diagram, thick arrows represent the way of light. It is also called as the wave normal because the way of light is normal to the wavefront.

Coherent Sources:

Coherent sources are the sources of light which emits continuous light waves with same wave length, frequency and in phase or having a constant phase difference.

Condition for obtaining coherent Source:

1. Coherent source of light should be obtained from a single source by some device.
2. The two source of light should give monochromatic light i.e., (light of some wave length). The path difference between the light waves from the two sources should be small.

Condition for Sustained Intereference of light: The two source providing intereference must be coherent.

• The wave must be having some amplitude.
• The two sources must be very close to each and pattern observed of large distance. So that sufficient width of fringes are formed.
• The source must be monochromatic.
• The two source should be point Source

Width of Central maximum: The width of central maximum is the distance between first secondary minimum On either Side of central bright fringe 0.

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