India-based Neutrino Observatory is included by the Planning Commission as a mega science project under the 11th Five-Year Plan. In this context, consider the following statements : 1. Neutrinos are chargeless elementary particles that travel close to the speed of light. 2. Neutrinos are created in nuclear reactions of beta decay. 3. Neutrinos have a negligible, but non-zero mass 4. Trillions of Neutrinos pass through the human body every second. Which of the statements given above are correct?

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YESPYQ · Accepted Answer

Correct answer: 1, 2, 3 and 4. The India-based Neutrino Observatory (INO) was designated as a mega science project in the 11th Five-Year Plan to promote research in high-energy physics. Option (d) is correct : Neutrinos are subatomic particles that play a key role in understanding the fundamental forces of na- ture. Despite their elusive nature and weak interactions, they are essential to various processes in the universe, such as stellar re- actions and cosmic phenomena.  Neutrinos are chargeless elementary particles that travel near the speed of light, making them difficult to detect.  Neutrinos are produced in nuclear reactions, such as beta decay, which occurs in stars, nuclear reactors, and radioactive decay processes. In beta decay, a neutron decays into a proton, emitting a beta particle (electron) and a neutrino.  Neutrinos have negligible but non-zero mass, confirmed through experiments in neutrino oscillation in particle physics.  Neutrinos are incredibly abundant in the universe. It is estimated that trillions of neutrinos pass through the human body every second, and

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