What do you know about Photons?

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  • 1/10 Questions

    Light is made up of?

    • Protons
    • Photons
    • Electrons
    • Neutrons
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About This Quiz

Photons are particles of light. Take this informative quiz and see how much you know about moving light particles. Photons are considered packets of light energy. This quiz is aimed at enhancing your knowledge base about photons, as it contains questions ranging from easy, medium to hard levels. This quiz will certainly help you build your conceptual understanding and also factual knowledge. Play this quiz to know more. All the best!

What Do You Know About Photons? - Quiz

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  • 2. 

    What happens to a photon's energy as the wave's frequency rises?

    • Energy decreases

    • Remains same

    • Energy increases

    • None of the above

    Correct Answer
    A. Energy increases
    Explanation
    As the wave's frequency rises, the photon's energy increases. This is because the energy of a photon is directly proportional to its frequency. A higher frequency means that the photon has more energy. This relationship is described by the equation E = hf, where E is the energy of the photon, h is Planck's constant, and f is the frequency of the wave. Therefore, as the frequency increases, the energy of the photon also increases.

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  • 3. 

    What does the letter "h" in the equation E = hv ?

    • Quantum Energy

    • Avogadro's number,

    • Photon energy

    • Planck's constant

    Correct Answer
    A. Planck's constant
    Explanation
    The letter "h" in the equation E = hv represents Planck's constant. Planck's constant is a fundamental constant in quantum mechanics that relates the energy of a photon (E) to its frequency (v). It is denoted by the symbol "h" and has a fixed value of approximately 6.626 x 10^-34 joule-seconds. The equation E = hv shows that the energy of a photon is directly proportional to its frequency, with Planck's constant acting as the proportionality constant.

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  • 4. 

    Who developed the concept of Photons?

    • Newton

    • Einstein 

    • Rutherford

    • Dalton

    Correct Answer
    A. Einstein 
    Explanation
    Einstein developed the concept of photons. Photons are particles of light that carry energy and have properties of both particles and waves. Einstein's work on the photoelectric effect in 1905 led to the understanding that light is made up of discrete packets of energy called photons. This concept revolutionized the field of physics and laid the foundation for the development of quantum mechanics.

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  • 5. 

    Photon is

    • Massless

    • No electric charge

    • Stable

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    Photons are elementary particles that make up electromagnetic radiation, including visible light. They have no mass, meaning they are massless. Additionally, photons have no electric charge, making them electrically neutral. Finally, photons are stable particles, meaning they do not decay or break down over time. Therefore, the correct answer is "all of the above" as all the statements are true for photons.

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  • 6. 

    Who discovered Photon?

    • Newton

    • Gilbert Lewis

    • Rutherford

    • Pascal

    Correct Answer
    A. Gilbert Lewis
    Explanation
    Gilbert Lewis is credited with discovering the photon. He proposed the concept of the photon in 1926 while studying the behavior of light and its interaction with matter. Lewis's work on the photon helped to advance our understanding of quantum mechanics and the wave-particle duality of light. His discovery laid the foundation for further research and developments in the field of physics.

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  • 7. 

    Photons are bundles of?

    • Light energyg

    • Electromagnetic energy

    • Sound energy

    • Kinetic energy

    Correct Answer
    A. Electromagnetic energy
    Explanation
    Photons are bundles of electromagnetic energy. Photons are particles of light, and light is a form of electromagnetic radiation. Electromagnetic energy refers to the energy carried by electromagnetic waves, which include visible light, infrared radiation, ultraviolet radiation, X-rays, and radio waves. Photons have no mass and travel at the speed of light. They carry energy and interact with matter, such as when they are absorbed or emitted by atoms. Therefore, the correct answer is electromagnetic energy.

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  • 8. 

    What is the mass of a moving photon?

    • Zero

    • Hv

    • Hv/c^2

    • None of the above

    Correct Answer
    A. Hv/c^2
    Explanation
    The mass of a moving photon is given by the equation E=mc^2, where E is the energy, m is the mass, and c is the speed of light. Since photons have energy but no rest mass, their mass is zero. Therefore, the correct answer is "zero".

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  • 9. 

    What is/are possible polarization stats of Photon in vacuum?

    • 1

    • 2

    • 3

    • 4

    Correct Answer
    A. 2
    Explanation
    The possible polarization states of a photon in a vacuum are linear polarization, circular polarization, and elliptical polarization. Linear polarization refers to the photon's electric field oscillating in a single plane, while circular polarization means the electric field rotates in a circular motion. Elliptical polarization occurs when the electric field traces an elliptical path. Therefore, the correct answer is 2, as it represents one of the possible polarization states of a photon in a vacuum.

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  • 10. 

    A photon's energy and momentum are solely dependent on?

    • Wavelength

    • Frequency

    • Mass

    • All of the above

    Correct Answer
    A. Frequency
    Explanation
    The energy and momentum of a photon are solely dependent on its frequency. This is because the energy of a photon is directly proportional to its frequency, according to the equation E = hf, where E is energy, h is Planck's constant, and f is frequency. Similarly, the momentum of a photon is also directly proportional to its frequency, according to the equation p = hf/c, where p is momentum and c is the speed of light. Therefore, the correct answer is frequency.

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  • Current Version
  • Nov 16, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 15, 2022
    Quiz Created by
    Amit Mangal
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