Kaplan Nursing Entrance Exam Practice 2026 – Comprehensive Prep

Question: 1 / 2700

What is released as a product of the fusion reaction in the sun's core?

Only photons

Massive amounts of neutrons

Photons and heat energy

The fusion reaction occurring in the sun's core primarily involves hydrogen nuclei combining to form helium. This process releases energy in the form of photons and heat. When hydrogen isotopes fuse, they undergo a series of reactions that ultimately result in the release of energy that we experience as heat and light from the sun.

Photons are the particles of light, and their release contributes significantly to the light we see from the sun. Additionally, the high temperatures generated by this fusion process lead to the significant thermal energy that radiates through space, warming the planets in the solar system.

Together, the production of photons and the resulting heat energy are critical to understanding why the sun is a central source of energy for life on Earth. Therefore, considering the processes involved in solar fusion, the correct response highlights both of these important products of the fusion reaction.

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Electrons and neutrinos

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