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Wave Nature of Light MCQ 1
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Wave Nature of Light MCQ 1

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Questions and Answers

What occurs when a wave passes through a gap or around an obstacle of roughly the same width as its wavelength?

  • Interference
  • Diffraction (correct)
  • Refraction
  • Reflection
  • What is the primary formula used in calculations involving interference patterns?

  • nλ = dcosθ (correct)
  • n = λ / d
  • n = d / λ
  • nλ = d sin θ
  • What is the purpose of a spectrometer in measuring interference patterns?

  • To calculate the order of the diffracted image
  • To determine the wavelength of the light source
  • To measure the angle between the zero order image and observed image (correct)
  • To separate different wavelengths of light
  • What is the result of the overlapping of two or more waves from different sources?

    <p>Interference</p> Signup and view all the answers

    What is the term used to describe the categorization of differing wavelengths of light?

    <p>Electromagnetic spectrum</p> Signup and view all the answers

    What is the term used to describe the spreading out of a wave into its geometric shadow?

    <p>Diffraction</p> Signup and view all the answers

    What is the physical constant that represents the distance between two consecutive grating lines?

    <p>Grating constant</p> Signup and view all the answers

    What is the name of the experiment that demonstrates the constructive and destructive interference of light waves?

    <p>Young's Double Slit Experiment</p> Signup and view all the answers

    What is the term used to describe the single resultant wave formed by the overlap of two or more waves from different sources?

    <p>Interference pattern</p> Signup and view all the answers

    What is the term used to describe the categorization of light into different wavelength ranges?

    <p>Electromagnetic spectrum</p> Signup and view all the answers

    Study Notes

    Wave Nature of Light

    • Diffraction is the spreading out of a wave into its geometric shadow as it passes through a gap, or around an obstacle, of roughly the same width as its wavelength.
    • Interference occurs when two or more waves from different sources overlap, forming a single resultant wave of different amplitude.

    Interference Patterns

    • Young's Double Slit Experiment demonstrates constructive and destructive interference of light waves.
    • The primary formula used in calculations involving interference patterns is nλ = dsinθ.
    • In this formula: • n = order of diffracted image • λ = wavelength of light source • d = grating constant • θ = angle between zero order image and observed image

    Measuring Angle of Interference

    • To measure θ, the angle between zero order image and observed image, a spectrometer is commonly used.
    • A spectrometer consists of various parts, which enable measurement of the angle of interference.

    Electromagnetic Spectrum

    • Differing wavelengths of light are separated into different categories known as the electromagnetic spectrum.

    Wave Nature of Light

    • Diffraction is the spreading out of a wave into its geometric shadow as it passes through a gap, or around an obstacle, of roughly the same width as its wavelength.
    • Interference occurs when two or more waves from different sources overlap, forming a single resultant wave of different amplitude.

    Interference Patterns

    • Young's Double Slit Experiment demonstrates constructive and destructive interference of light waves.
    • The primary formula used in calculations involving interference patterns is nλ = dsinθ.
    • In this formula: • n = order of diffracted image • λ = wavelength of light source • d = grating constant • θ = angle between zero order image and observed image

    Measuring Angle of Interference

    • To measure θ, the angle between zero order image and observed image, a spectrometer is commonly used.
    • A spectrometer consists of various parts, which enable measurement of the angle of interference.

    Electromagnetic Spectrum

    • Differing wavelengths of light are separated into different categories known as the electromagnetic spectrum.

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    Description

    Learn about the wave nature of light, including diffraction and interference. Understand how light waves behave when passing through gaps or around obstacles, and how they overlap to form a single resultant wave.

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