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18th Chapter

10th class Physics Ch 18 (English Medium)

Here you can prepare 10th Physics English Medium Chapter 18 (Radioactivity) Test. Click the button for 100% free full practice test.

Matric Part 2/10th Class Physics Chapter 18 MCQ Test With Answer for Chapter 18 (Radioactivity)

Matric Part 2/10th Class Physics Chapter 18 MCQ Test With Answer for Chapter 18 (Radioactivity)

Sr. # Questions Answers Choice
1 The process of breaking a heavy nucleus after the bombardment of neutrons into two small nuclei is called:
  • A. Nuclear fission reaction
  • B. Nuclear fusion reaction
  • C. Nuclear Radiation
  • D. Nuclear chain reaction
2 <p class="MsoNormal">The galvanometer has been named after the scientist:<o:p></o:p></p>
  • A. <p class="MsoNormal">Lewis<o:p></o:p></p>
  • B. <p class="MsoNormal">Lowry bronsted<o:p></o:p></p>
  • C. <p class="MsoNormal">Luigi Galvano<o:p></o:p></p>
  • D. <p class="MsoNormal">Galvano Einstein<o:p></o:p></p>
3 <p class="MsoNormal">with the increase in temperature the resistance of pure metals:<o:p></o:p></p>
  • A. <p class="MsoNormal">increases<o:p></o:p></p>
  • B. <p class="MsoNormal">decreases<o:p></o:p></p>
  • C. <p class="MsoNormal">remains same<o:p></o:p></p>
  • D. <p class="MsoNormal">none of these<o:p></o:p></p>
4 <p class="MsoNormal">The unit of electric power is:<o:p></o:p></p>
  • A. <p class="MsoNormal">Volt<o:p></o:p></p>
  • B. <p class="MsoNormal">Watt<o:p></o:p></p>
  • C. <p class="MsoNormal">Joule<o:p></o:p></p>
  • D. <p class="MsoNormal">Coulomb<o:p></o:p></p>
5 <p class="MsoNormal">the resistance of conductor is inversely to:<o:p></o:p></p>
  • A. <p class="MsoNormal">temperature<o:p></o:p></p>
  • B. <p class="MsoNormal">length<o:p></o:p></p>
  • C. <p class="MsoNormal">area of cross section<o:p></o:p></p>
  • D. <p class="MsoNormal">pressure<o:p></o:p></p>
6 <p class="MsoNormal">Joule’s law is W=<o:p></o:p></p>
  • A. <p class="MsoNormal">IR/t<o:p></o:p></p>
  • B. <p class="MsoNormal">IRt<sup>2</sup><o:p></o:p></p>
  • C. <p class="MsoNormal">IR<sup>2</sup>t<o:p></o:p></p>
  • D. <p class="MsoNormal">I<sup>2</sup>Rt<o:p></o:p></p>
7 <p class="MsoNormal">an additional wire used along with live and neutral wire is:<o:p></o:p></p>
  • A. <p class="MsoNormal">cable wire<o:p></o:p></p>
  • B. <p class="MsoNormal">earth wire<o:p></o:p></p>
  • C. <p class="MsoNormal">grip wire<o:p></o:p></p>
  • D. <p class="MsoNormal">hot wire<o:p></o:p></p>
8 <p class="MsoNormal">What is the amount of current passing through an electric heater, if it takes 1800C charge pass through it in 3 minute:<o:p></o:p></p>
  • A. <p class="MsoNormal">16 A<o:p></o:p></p>
  • B. <p class="MsoNormal">10 A<o:p></o:p></p>
  • C. <p class="MsoNormal">100 A<o:p></o:p></p>
  • D. <p class="MsoNormal">0.1 A<o:p></o:p></p>
9 The Half life of a certain isotopes is 1 day. What is the quantity of isotopes after 2 days?
  • A. One half
  • B. One quarter
  • C. One eight
  • D. None of these
10 <p class="MsoNormal">earth wire is connected with those appliances whose casing is made of:<o:p></o:p></p>
  • A. <p class="MsoNormal">metals<o:p></o:p></p>
  • B. <p class="MsoNormal">wood<o:p></o:p></p>
  • C. <p class="MsoNormal">glass<o:p></o:p></p>
  • D. <p class="MsoNormal">plastic<o:p></o:p></p>

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