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Radioactivity Video Lecture | General Awareness & Knowledge - Bank Exams
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FAQs on Radioactivity Video Lecture - General Awareness & Knowledge - Bank Exams
| 1. What is radioactivity? |  |
Ans. Radioactivity refers to the spontaneous emission of radiation from the atomic nucleus of an unstable atom. It occurs when the nucleus undergoes a process called radioactive decay, releasing particles or electromagnetic waves.
| 2. How is radioactivity measured? | |
Ans. Radioactivity is measured using a unit called the becquerel (Bq), which represents the number of radioactive decays per second. Another commonly used unit is the curie (Ci), where 1 Ci equals 3.7 x 10^10 Bq.
| 3. What are the different types of radioactive decay? | |
Ans. The three main types of radioactive decay are alpha decay, beta decay, and gamma decay. Alpha decay involves the emission of alpha particles (2 protons and 2 neutrons), beta decay involves the emission of beta particles (electrons or positrons), and gamma decay involves the release of high-energy gamma rays.
| 4. How does radioactivity affect living organisms? | |
Ans. Radioactivity can have harmful effects on living organisms if they are exposed to high levels of radiation. It can damage cells and DNA, leading to increased risk of cancer, genetic mutations, and other health problems. However, low levels of background radiation are generally not harmful and can even have some beneficial effects.
| 5. How can radioactivity be detected and monitored? | |
Ans. Radioactivity can be detected and monitored using various instruments such as Geiger-Muller counters, scintillation detectors, and ionization chambers. These devices measure the ionizing radiation emitted by radioactive materials. Additionally, environmental monitoring and regular inspections of radiation sources are conducted to ensure safety and compliance with regulations.
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Nov 24, 2024 Last updated |
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