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Light and photon energy

Chemistry • Electrons in Atoms • Original Scenario-Based • 1 questions

Light and photon energy Original Scenario-Based Download PDF

Chemistry · Atomic Structure · Chemistry · Electrons in Atoms

1 Chemistry practice questions on Light and photon energy. Questions built around original scenarios.

Questions

  1. 1.

    A deep-space probe traversing the Lumina Veil detects two coherent monochromatic signals emitted by an ionized interstellar gas cloud: Signal X at a wavelength of 300 nm and Signal Y at a wavelength of 600 nm. The science team must calibrate the probe's quantum sensors to record the energy carried by individual photons in each signal. Based on the relationship between photon energy, wavelength, and frequency, which statement correctly compares these two radiation signals?

    • A) Signal Y photons carry twice the energy of Signal X photons because photon energy is directly proportional to wavelength.
    • B) Signal X photons carry twice the energy of Signal Y photons because photon energy is inversely proportional to wavelength.
    • C) Signal X photons have a lower frequency and therefore lower energy than Signal Y photons.
    • D) Signal X and Signal Y photons carry identical energy because electromagnetic waves travel at the same constant speed in a vacuum.