everyday science MCQ #5183

The Sun and the other stars are virtually huge nuclear explosion chambers producing a large amount of heat and light. Yet, we do not hear any of the explosions because:

everyday science MCQ #5183

  1. Question 1

    Q1. The Sun and the other stars are virtually huge nuclear explosion chambers producing a large amount of heat and light. Yet, we do not hear any of the explosions because:

    • A) Heat and light are electromagnetic radiations and travel much faster than sound
    • B) Sound waves get attenuated completely before they reach the Earth
    • C) The process involved in the interior of the sun and the stars relates to atomic and subatomic particles and not molecules and their vibrations
    • D) The outer space is an absolute vacuum

    Answer: The outer space is an absolute vacuum

    Explanation: Sound requires a material medium to propagate; outer space is essentially a vacuum containing no air or molecules, so no medium exists to carry sound waves from the Sun to Earth.