Engineering Entrance Exam
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6 months agoContributor-Level 10
These are the difference between the alpha, beta and gamma decay:
- Alpha decay: It reduces mass number by 4 and atomic number by 2. It is the emission of a helium nucleus (2 protons, 2 neutrons).
- Beta decay: It changes atomic number by ±1 but there is no change in the mass number. It involves a neutron converting into a proton (or vice versa).
- Gamma decay: Here, there is no change in the atomic or mass number, just the emission of high-energy photons.
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6 months agoContributor-Level 10
Within a nucleus, how tightly nucleons are bound is the binding energy per nucleon. If the binding energy per nucleon is higher then it means more stable nuclei. Iron-56 is the most stable as it has one of the highest values. Both the fusion of light nuclei and the fission of heavy nuclei release energy by moving toward higher binding energy per nucleon.
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6 months agoContributor-Level 10
The difference between the mass of a nucleus and the sum of the masses of its individual protons and neutrons is known as the mass defect. Mass defect is the key concept in understanding the nuclear stability and energy release in nuclear reactions. The binding energy is converted from the "missing" mass. The binding energy holds the nucleus together.
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6 months agoContributor-Level 7
IIEST Shibpur accepts JEE Main scores for the admission to BTech and BTech Integrated courses. Candidates preparing for IIEST Shibpur are only required to appear for the JEE Main entrance exam. Students who secure above the 75 percentile in JEE Main 2025 will have fair chances to secure a seat at the institute. Further, they need to start preparing for the counselling session. Candidates acquiring decent ranks in JEE Mains results must apply for round-wise counselling.
At the time of JoSAA 2025 Registration, candidates also need to fill choices of their preferred college and branch. The allotment of seats will be done based on
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