In this post, I am sharing the Class 12 Physics Chapter 21 Short Questions and Numerical Notes PDF for the students of Intermediate Part 2. This chapter’s name is Nuclear Physics. Students can download the Class 12 Physics Chapter 21 Short Questions and Numerical Notes PDF on their laptops or mobile. These Physics Notes are for all the boards working under the Punjab Board like Gujranwala Board, Lahore Board, Faisalabad Board, Multan Board, Rawalpindi Board, Sargodha Board, DG Kahn Board, and Sahiwal Board. Here are the complete FSC 2nd Year Physics Notes PDF chapters.
FSC Part 2 Physics Chapter 21 Short Questions and Numerical Notes – Nuclear Physics
What are isotoptes? What do they have in common and what are their difference?
Isotopes are the atoms of the same element having the same atomic number but different mass numbers. Isotopes can also be defined as those atoms of the same element which have different numbers of neutrons within the nucleus. e.g., hydrogen has three isotopes i.e., H1, H2, and H3 Isoptes have got the same chemical properties but their physical properties are different.
Why are heavy nuclei unstable?
The heavy nuclei are unstable because their binding energy per nucleon is very small therefore they are unstable and very small amount of energy is required to split a heavy nuclei.
What do we mean by the term critical mass?
Sucha a mass of urnium in which one neutron out of all the neutrons produced in one fission reaction producers further fission. The volume of this mass of urnium is called the critical mass.
How to Download 2nd year Physics Chapter 21 Short Questions and Numerical Notes
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