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Concept Maps

Dispersion and Scattering of Light — Concept Maps

NIOS · Class 12 · Physics

4 concept maps of Dispersion and Scattering of Light for NIOS Class 12 Physics, each also written out as a text outline.

45 questions38 flashcards12 formulas & key relations5 concepts

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4 Concept Maps

Chapter Overview: Dispersion and Scattering of Light

Chapter Overview: Dispersion and Scattering of Light

The map in words

  • Dispersion and Scattering
    • Dispersion
      • Cause
        • mu varies with wavelength
        • muV greater than muR
      • Through Prism
        • Deviation Formula
        • r1 plus r2 equals A
        • i plus e equals A plus delta
      • Minimum Deviation
        • i equals e
        • r equals A by 2
        • mu formula
      • Thin Prism
        • delta equals mu minus 1 times A
      • Dispersive Power
        • omega equals delta V minus delta R by delta Y
        • omega equals mu V minus mu R by mu Y minus 1
    • Rainbow
      • Primary Rainbow
        • 2 Refractions 1 Reflection
        • Red Outside Violet Inside
        • Angle 42 degrees
      • Secondary Rainbow
        • 2 Refractions 2 Reflections
        • Violet Outside Red Inside
        • Angle 51 to 54 degrees
        • Fainter than Primary
    • Scattering
      • Rayleigh Law
        • I proportional to 1 by lambda 4
        • Blue scattered most
        • Red scattered least
      • Blue Sky
        • Small air molecules
        • Blue light dominates
      • White Clouds
        • Large water droplets
        • All colours equal
      • Red Sunrise Sunset
        • Long path in atmosphere
        • Blue scattered away
    • Raman Effect
      • Elastic Scattering
        • Rayleigh no frequency change
      • Inelastic Scattering
        • Stokes lower frequency
        • Anti-Stokes higher frequency
      • Nobel Prize 1930
        • CV Raman

Mind map showing the two major topics of the chapter — Dispersion and Scattering — with their key sub-concepts

Mind map showing the two major topics of the chapter — Dispersion and Scattering — with their key sub-concepts

The map in words

  • Light Phenomena
    • Dispersion
      • Prism splits white light
      • VIBGYOR spectrum
      • Refractive index varies with wavelength
      • Rainbow formation
    • Scattering
      • Rayleigh Law
      • Blue Sky
      • White Clouds
      • Red Sunset
      • Raman Effect

Flowchart showing how white light entering a denser medium splits into colours due to different refractive indices for different wavelengths

Flowchart showing how white light entering a denser medium splits into colours due to different refractive indices for different wavelengths

The map in words

  • White Light
    • Enters Denser Medium
      • Different colours have different speeds
        • Violet - slowest: Highest refractive index
          • Violet bends most
            • VIBGYOR Spectrum
        • Red - fastest: Lowest refractive index
          • Red bends least

Dispersion and Scattering of Light

Dispersion and Scattering of Light

The map in words

  • Dispersion and Scattering of Light
    • Dispersion of Light
    • Refraction Through a Prism
    • Minimum Deviation
    • Small-Angle Prism Formula
    • Dispersive Power (ω)
    • Rainbow Formation
    • Scattering of Light
    • Raman Effect

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Frequently Asked Questions

What are the important topics in Dispersion and Scattering of Light for NIOS Class 12 Physics?
Key topics in Dispersion and Scattering of Light include Dispersion of Light – Concept and Cause, Refraction Through a Prism – Angle of Deviation, Angular Dispersion and Dispersive Power, Rainbow – Formation and Types. Study these first, then practise questions on each for the NIOS Class 12 board exam.
What do the concept maps for Dispersion and Scattering of Light show?
The 4 maps show how the ideas in Dispersion and Scattering of Light connect: Chapter Overview: Dispersion and Scattering of Light; Mind map showing the two major topics of the chapter — Dispersion and Scattering — with their key sub-concepts. Each map is also written out as an outline on this page.
How should I revise Dispersion and Scattering of Light for the NIOS Class 12 board exam?
Learn the core ideas first, then work through the 45 practice questions on Dispersion and Scattering of Light. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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