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Spectrum

ICSE · Class 10 · Physics

Complete topic list for Spectrum in ICSE Class 10 Physics. Key concepts, sub-topics, and what to focus on for board exams.

44 questions20 flashcards5 concepts

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A comprehensive infographic displaying the entire electromagnetic spectrum, ordered by increasing wavelength and decreasing frequency (or vice-versa). It should include different regions like Gamma ra
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3 Topics · ICSE Class 10 Physics

Topics in Spectrum

1

Deviation, Dispersion and Spectrum

  • Deviation occurs when light passes through a prism due to refraction at two surfaces
  • Total deviation δ = δ₁ + δ₂ (sum of deviations at both surfaces)
  • Deviation depends on: angle of incidence, angle of prism, refractive index of material
2

Electromagnetic Spectrum

  • Electromagnetic waves consist of oscillating electric and magnetic fields
  • Electromagnetic spectrum is orderly classification of EM waves by frequency/wavelength
  • Visible spectrum: wavelength range 4000-8000 Å, detected by human eyes
3

Scattering of Light

  • Scattering is absorption and re-emission of light by particles in atmosphere
  • Intensity of scattered light is inversely proportional to fourth power of wavelength
  • I ∝ 1/λ⁴ (Rayleigh scattering)

Key Concepts

Central concept: Spectrum

Deviation by a PrismDispersion of White LightVisible SpectrumElectromagnetic SpectrumCharacteristics of EM WavesScattering of Light

Frequently Asked Questions

What are the important topics in Spectrum for ICSE Class 10 Physics?
Spectrum covers several key topics that are frequently asked in ICSE Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Spectrum — ICSE Class 10 Physics?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

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

More resources for Spectrum

All 12 chapters — ICSE Class 10 Physics Syllabus

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