ICSE Class 10 Physics Revision Notes Chapter 12 - Radioactivity

Students may have learned in their earlier classes that positive and negative charges attract each other. And what do we have inside of the nucleus? Bingo! The proton. These protons and electrons are highly attracted to each other thus, the electron revolves around the nucleus in an orbit.

Now, other electrons revolving in an orbit located further away from the nucleus are weakly attracted to it. In other words, they are loosely bound electrons and hence are called free electrons.

INDEX OF CHAPTER 12- RADIOACTIVITY

1.1 Introduction to Radioactivity 

1.2 The atom and its components

1.3 Cathode Ray Tube

1.4 Alpha and Beta particles

1.5 Gamma Radiations

1.6 Harmful Effects of Radioisotopes

List of exercises in Chapter 12- Radioactivity

Exercise. 12A - 51 questions

Exercise. 12B - 19 Questions

Both the exercises consist of MCQs.

All of the important information that you need for your ICSE studies and chapter-wise solutions can be found on the VEDANTU App or Website for free. You will get details regarding your ICSE syllabus, Summary Notes, Solved questions along with their explanations, Sample papers to practice for your board examinations as well as Revision notes.

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Solving the questions

Let’s suppose that you read a book of about 200 pages. In the end, you can’t remember every word of it. Neither is that logical. But when you will start solving questions, you will start remembering what you read. Whether it’s from the 5th page or the 50th page. Solving questions improves your logical assessment skills as well as your thinking capabilities. Only reading is never enough, practicality is the most important aspect of studying. This is where students lack the most. The only theory does not help you crack exams.

Improving Physics 

There is only one solution to this which is practising more and more questions. In the first 3 days, you will feel as if it’s the most difficult thing in the entire world. But on the 4th day, you will start seeing a pattern. A pattern in which the questions are asked to you. Slowly, you will start thinking about how it should be solved and in a matter of time, you will be able to solve them with ease. Of course, this takes hard work but remember that Rome wasn’t built in a day either. Practice questions daily. Even if there’s a day when you feel like not doing anything, practise at least 5 questions. Consistency is the key to success.

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