Ch 18 Physics Class 10

Important Complete Notes of Radioactivity Ch 18 Physics Class 10 written by Professor Sami Ullah Suib. These handwritten notes are very helpful in the preparation of Sound for students of the Physics 10th class and these are according to the paper patterns of all KPK boards. 

Summary and Contents:
Topics which are discussed in the notes are given below:
  • Definition of Nuclear Physics
  • Definition of Atom also write structure of atom, Diameter of Nucleus, Diameter of Atom and Parts of Atom.
  • Definition of Atomic Number with Examples with its Symbol, Mathematical form.
  • Definition of neutron number with examples and Symbolically Representation.
  • Definition of Nucleons with examples and Symbolically Representation.
  • Derivation and definition of isotopes with examples.
  • Definition of radioactivity with its examples.
  • Explain the properties of Alpha emission.
  • Explain the properties of Beta emission.
  • Explain the properties of Gamma emission.
  • Definition of ionization
  • Definition of penetrating power
  • Definition of nuclear transmutation and write its other name.
  • Types of nuclear transportation or nuclear
  • Definition of Alpha Decay with examples also write its Explanation and Mathematical Form.
  • Definition of Beta decay with examples also write its Explanation and Mathematical Form.
  • Definition of Gamma decay with examples also write its Explanation and Mathematical Form.
  • Definition of activity with its unit
  • Definition of Curie
  • Definition of half-life of radioactivity with its symbol and explanation
  • Definition of radioisotopes and types of radioisotopes.
  • Definition of Neutral Radioisotopes with Examples
  • Definition of Artificial Radioisotopes with Examples
  • Definition of artificial radioisotopes with examples
  • Uses of radioisotopes: (i) Food preservation (ii) Sterillinsing (iii) Agriculture (iv) Industry (v) Medical Uses.
  • Explain Einstein Mass Energy with History, Purpose, Statement, Mathematical form, and Examples.
  • Explain Nuclear Fission with History, Purpose, Statement, Mathematical form, and Examples.
  • Define Fission Chain Reaction and  Explanation.
  • Explain Fusion with History, Purpose, Statement, Mathematical form, and Examples.
  • Radiations Hazards OR Harmful Effects of Radiations
  • Procedure to Minimize Radiations Dangers OR Safety Measures
  • Names of Instruments used for the detection of radiations
  • The atomic number of one particular isotopes is equal to its mass number. Which isotopes is it?
  • Which is more likely to expose, a film kept in a cardboard box alpha particles or beta particles? Explain.
  • Is it possible for a form of heavy hydrogen to decay by emitting an alpha particle? Explain.
  • Different isotopes of a given element have different messes but they have same chemical properties explain why chemical properties are unaffected by a change of isotopes.
  • What fraction of a radioactive sample has decided after two half-lives have elapsed?
  • Can carbon-14 dating give the age of fossil dinosaur skeletons? Explain.
  • Some food is treated with the gamma radiation to kill bacteria. Why is there not a concern that people who eat such food might be consuming food containing Gamma radiations?
  • Radioactive Alpha enters are relatively harmless outside the body, but can be dangerous if in gases or inhaled. Explain.
  • If nuclear radiation is harmful how it can be used for the treatment of diseases?
  • Solved Numerical of Radioactivity Ch 18 Physics Class 10 in KPK Boards
  • How many neutrons are contained in a gold nucleus 197Au 79?
  • lodine -131 is an important radioisotope for medical diagnostic and treatment procedures. The half-life of 1311 is 8.02 days. Out of 100 g of the sample how much will be left after 24 days?
  • Phosphorus-32 is used in plant sciences for tracking a plant's uptake of fertilizer from the roots to the leaves. The half-life of 32P is 15 days. Out of 800 µg of the activity given as fertilizer how much will be left after one month?
  • 12C to 14C ratio in an animal fossil is found to be one fourth of the ratio in the bone of living animal. The half-life of 14C is 5730 years, how old is the fossil?

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