Wave-Particle Duality Equations
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Wave-Particle Duality Equations

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Questions and Answers

What is the relationship between energy (E) and frequency (f) in wave-particle duality?

  • E is directly proportional to f.
  • E equals $hf$. (correct)
  • E is independent of f.
  • E is inversely proportional to f.
  • Which equation correctly relates the speed of light (c), wavelength ($ ext{λ}$), and frequency (f)?

  • $c = rac{E}{f}$
  • $c = rac{E}{ ext{λ}}$
  • $c = ext{λ}f$ (correct)
  • $c = E imes ext{λ}$
  • In the equation $E = rac{hc}{ ext{λ}}$, what does the variable $ ext{λ}$ represent?

  • Mass
  • Wavelength (correct)
  • Energy
  • Frequency
  • Which of the following equations can be used to express the relationship between energy and mass?

    <p>$E = mc^2$</p> Signup and view all the answers

    What constants are involved in the equation $E = hf$?

    <p>Frequency and Planck's constant</p> Signup and view all the answers

    What does one electron volt (eV) represent?

    <p>The energy gained by an electron when moved through an electric potential difference of one volt.</p> Signup and view all the answers

    How many joules is one electron volt equivalent to?

    <p>$1.602 imes 10^{-19}$ J</p> Signup and view all the answers

    In what scenario would an electron gain an energy of one electron volt?

    <p>When accelerated through a potential difference of one volt.</p> Signup and view all the answers

    Which of the following statements about the electron volt is incorrect?

    <p>It is specific to electrons only.</p> Signup and view all the answers

    What is the primary application of electron volts in scientific fields?

    <p>To quantify the energy levels in atomic and particle physics.</p> Signup and view all the answers

    What does the equivalent dose measure?

    <p>The absorbed dose weighted by radiation type</p> Signup and view all the answers

    What is the relationship between sievert and rem?

    <p>1 sievert = 100 rem</p> Signup and view all the answers

    In the formula $H_T = \sum_{R} D_{T,R} \cdot W_R$, what does $W_R$ represent?

    <p>Weighting factor for the type of radiation</p> Signup and view all the answers

    Which of the following represents the typical units for measuring equivalent dose?

    <p>Millirem (mrem) and microsievert ($\mu$Sv)</p> Signup and view all the answers

    How is one millirem related to microsieverts?

    <p>1 mrem = 10 $,\mu$Sv</p> Signup and view all the answers

    What is the SI unit of absorbed dose?

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

    How many grays are equivalent to 100 rads?

    <p>1 Gy</p> Signup and view all the answers

    What does the absorbed dose specifically measure in relation to ionizing radiation?

    <p>The amount of energy deposited per mass</p> Signup and view all the answers

    What is the traditional unit corresponding to the absorbed dose in grays?

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

    Which of the following best describes a gray (Gy)?

    <p>The amount of radiation depositing 1 joule per kg of matter</p> Signup and view all the answers

    What is binding energy?

    <p>The energy required to separate a particle from a system of particles.</p> Signup and view all the answers

    How does binding energy vary with atomic number?

    <p>It increases as the atomic number increases.</p> Signup and view all the answers

    Which statement correctly describes the relationship between binding energy and the shell structure of an atom?

    <p>Binding energy can vary depending on the shell occupied by the electrons.</p> Signup and view all the answers

    Which of the following statements about binding energy is false?

    <p>Binding energy is a measure of energy emitted when particles combine.</p> Signup and view all the answers

    What effect does increasing binding energy generally have on a system's stability?

    <p>It increases the stability of the system.</p> Signup and view all the answers

    Which type of electromagnetic wave has the shortest wavelength?

    <p>X- and gamma rays</p> Signup and view all the answers

    Which of the following energy ranges corresponds to ultraviolet waves?

    <p>3-12 eV</p> Signup and view all the answers

    What is the frequency range for infrared waves?

    <p>30-430 THz</p> Signup and view all the answers

    Which type of wave falls within the wavelength range of 700-400 nm?

    <p>Visible light</p> Signup and view all the answers

    Which energy level is associated with radio waves?

    <p>40-200 neV</p> Signup and view all the answers

    What does the inverse square law for intensity indicate about the relationship between intensity and distance?

    <p>Intensity decreases as distance increases.</p> Signup and view all the answers

    In the equation $I₁ / I₂ = d₂²/d₁²$, what does d₁ and d₂ represent?

    <p>The distances from the source at which intensities are measured.</p> Signup and view all the answers

    Based on the inverse square law, what can be inferred about the intensity at a distance of 4 meters compared to a distance of 2 meters?

    <p>The intensity at 4 meters will be one-fourth of that at 2 meters.</p> Signup and view all the answers

    If the intensity of a sound wave is measured at a distance of 3 meters, how will the intensity change if the distance is increased to 9 meters?

    <p>The intensity will decrease by a factor of 9.</p> Signup and view all the answers

    Which of the following phenomena can be explained using the inverse square law for intensity?

    <p>The variation in sound level as you move further from the source.</p> Signup and view all the answers

    What defines isotones?

    <p>They share the same neutron number.</p> Signup and view all the answers

    Which statement is true regarding isomers?

    <p>Isomers exist in different excited states.</p> Signup and view all the answers

    In the case of mirror nuclei, what is true about their mass number and proton/neutron relationship?

    <p>They share the same mass number, with swapped proton and neutron numbers.</p> Signup and view all the answers

    Which of the following correctly describes Ba-137m?

    <p>It exists in an isomeric state.</p> Signup and view all the answers

    What distinguishes Cs-137 from its decay product Ba-137?

    <p>Ba-137 has a lower mass than Cs-137.</p> Signup and view all the answers

    Which type of radiation can remove electrons from atoms or molecules?

    <p>Gamma rays</p> Signup and view all the answers

    What is an example of non-ionizing radiation?

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

    Which characteristic distinguishes ionizing radiation from non-ionizing radiation?

    <p>Ionizing radiation has higher energy levels than non-ionizing radiation.</p> Signup and view all the answers

    Which of the following does not classify as ionizing radiation?

    <p>Red light</p> Signup and view all the answers

    What is radiation primarily defined as?

    <p>Energy traveling through space</p> Signup and view all the answers

    What is a characteristic feature of non-ionizing radiation?

    <p>It is less energetic than ionizing radiation.</p> Signup and view all the answers

    Which type of radiation is commonly used in medicine?

    <p>Ionizing radiation</p> Signup and view all the answers

    Why is it necessary to control exposure to high levels of radiation?

    <p>It can cause damage to matter and living tissue</p> Signup and view all the answers

    Sunshine is an example of which kind of radiation?

    <p>Non-ionizing radiation</p> Signup and view all the answers

    What are examples of sources of low doses of radiation in our environment?

    <p>Air, space, and earth materials</p> Signup and view all the answers

    Study Notes

    Wave-Particle Duality Equations

    • Energy (E) = mass (m) x speed of light (c)²
    • Energy (E) = Planck's constant (h) x frequency (f)
    • Speed of light (c) = wavelength (λ) x frequency (f)
    • Energy (E) = Planck's constant (h) x speed of light (c) / wavelength (λ)

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    Test your understanding of the key equations related to wave-particle duality in physics. This quiz covers the relationships between energy, mass, frequency, and wavelength using fundamental equations. Prepare to explore the fascinating interplay between waves and particles!

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