Laser Diffraction and Wavelength Measurement Quiz
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Questions and Answers

What is the relationship between Xm (cm) and L (cm) in the given experiment?

  • Xm (cm) and L (cm) are independent of each other
  • Xm (cm) decreases as L (cm) increases
  • Xm (cm) increases as L (cm) increases
  • Xm (cm) and L (cm) have a linear relationship (correct)

    • What is the slope of the relationship between Xm (cm) and L (cm)?

  • Cannot be determined
  • Positive (correct)
  • Negative
  • Zero

    • What is the wavelength (λ) in the given experiment?

  • 0.00002 cm
  • 190 cm
  • 0.00106 cm (correct)
  • Cannot be determined from the given information

    • What is the value of sinθ in the given experiment?

    <p>0.0009</p> Signup and view all the answers

    What does a laser emit?

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

    What happens to the waves of light when a small object obstructs them?

    <p>They spread around the edges and interfere</p> Signup and view all the answers

    Which type of laser is classified as Optically Pumped Solid-State Lasers?

    <p>Ruby Laser</p> Signup and view all the answers

    What is the meaning of 'laser'?

    <p>Light amplification by the stimulated emission of radiation</p> Signup and view all the answers

    Which type of medical laser has a strong emission?

    <p>Optically Pumped Solid-State Lasers</p> Signup and view all the answers

    What type of beam does laser light produce?

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

    What does the order of diffraction 'm' represent in the given context?

    <p>'m' represents the order of diffraction</p> Signup and view all the answers

    What does 'coherent light' mean?

    <p>In phase light of a single wavelength</p> Signup and view all the answers

    How is laser light described in terms of directionality?

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

    What is the purpose of using a slit in laser diffraction experiments?

    <p>To create a pattern of dark and light fringes</p> Signup and view all the answers

    Study Notes

    Laser Properties and Behavior

    • The relationship between Xm (cm) and L (cm) in the given experiment is proportional, indicating a direct relationship between the two variables.

    Diffraction and Interference

    • The slope of the relationship between Xm (cm) and L (cm) represents the wavelength (λ) of the laser light, which can be calculated from the experiment.
    • The order of diffraction 'm' represents the number of bright fringes or maxima occurring between two consecutive nodal lines in the diffraction pattern.

    Laser Characteristics

    • Laser light is a type of coherent light, meaning it has a fixed phase relationship between its constituent waves.
    • Laser light produces a narrow, directional beam with low divergence, making it highly focused.
    • Lasers emit coherent light of a specific wavelength, which can be used in various applications.

    Laser Type and Application

    • One type of laser is classified as Optically Pumped Solid-State Lasers.
    • The 'laser' acronym stands for Light Amplification by Stimulated Emission of Radiation.
    • Some medical lasers, like CO2 lasers, have a strong emission and are used in surgical procedures.

    Obstruction and Diffraction

    • When a small object obstructs light waves, it causes diffraction, which is the bending of light around the object.
    • In laser diffraction experiments, a slit is used to create a narrow beam of light, allowing for more accurate measurements of diffraction patterns.

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    Related Documents

    Laser Diffraction - University of Al-Ameed - 2023-2024 - PDF

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    By Ahmed Safaa Telegram channel : https://t.me/mcqb2

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