Official Answer Key & Detailed Solution
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Correct Answer: Option (D) — 1, 2, 3 and 4
Concept & Option Breakdown
Standard Reference VerifiedStatement 1 is correct: Neutrinos are neutral leptons with no electric charge that travel at velocities very close to the speed of light.
Statement 2 is correct: Neutrinos (and antineutrinos) are produced during nuclear processes such as beta decay, nuclear fusion in stars, and reactions in nuclear reactors.
Statement 3 is correct: Neutrino oscillation experiments confirmed that neutrinos possess a tiny, non-zero mass.
Statement 4 is correct: Due to their weak interaction with matter and immense abundance from solar fusion, trillions of solar neutrinos pass through each human body every second unhindered.
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