18th Chapter

10th class Physics Ch 18 (English Medium)

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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 symbol of atomic mass number is:
  • A. A
  • B. X
  • C. N
  • D. Z
2 <p class="MsoNormal">The rating of a fuse wire is always expressed in:<o:p></o:p></p>
  • A. <p class="MsoNormal">ampere-hours<o:p></o:p></p>
  • B. <p class="MsoNormal">KWh<o:p></o:p></p>
  • C. <p class="MsoNormal">Volts<o:p></o:p></p>
  • D. <p class="MsoNormal">Amperes<o:p></o:p></p>
3 The half life of plutonium<sup> 236</sup>Pu<sub>94 </sub>is:
  • A. 2.00 years
  • B. 2.35 years
  • C. 2.79 years
  • D. 2.85 years
4 <p class="MsoNormal">The value or current I passing through a conductor is inversely proportional to:<o:p></o:p></p>
  • A. <p class="MsoNormal">Temperature<o:p></o:p></p>
  • B. <p class="MsoNormal">Potential difference<o:p></o:p></p>
  • C. <p class="MsoNormal">e.m.f.<o:p></o:p></p>
  • D. <p class="MsoNormal">resistance<o:p></o:p></p>
5 <p class="MsoNormal">The equivalent resistance of a parallel combination is:<o:p></o:p></p>
  • A. <p class="MsoNormal">Equal to sum of all resistance<o:p></o:p></p>
  • B. <p class="MsoNormal">Is greater than the largest resistance of combination<o:p></o:p></p>
  • C. <p class="MsoNormal">Is smaller than the smallest resistance of combination<o:p></o:p></p>
  • D. <p class="MsoNormal">All of these<o:p></o:p></p>
6 <p class="MsoNormal">The power of small fan is:<o:p></o:p></p>
  • A. <p class="MsoNormal">40 W<o:p></o:p></p>
  • B. <p class="MsoNormal">50 W<o:p></o:p></p>
  • C. <p class="MsoNormal">60 W<o:p></o:p></p>
  • D. <p class="MsoNormal">80 W<o:p></o:p></p>
7 <p class="MsoNormal">in a dry cell, chemical energy changes into:<o:p></o:p></p>
  • A. <p class="MsoNormal">mechanical energy<o:p></o:p></p>
  • B. <p class="MsoNormal">electrical energy<o:p></o:p></p>
  • C. <p class="MsoNormal">potential energy<o:p></o:p></p>
  • D. <p class="MsoNormal">kinetic energy<o:p></o:p></p>
8 The reason carbon dating work is that.
  • A. Plants and animals are such strong emitters of carbon 14
  • B. After a plant or animal dies, it stops in fresh carbon
  • C. There is so much non radioactive carbon dioxide in the air
  • D. When a plant or animal dies.
9 <p class="MsoNormal">If we double both the current and the voltage in a circuit while keeping its resistance constant, the power:<o:p></o:p></p>
  • A. <p class="MsoNormal">Remains unchanged<o:p></o:p></p>
  • B. <p class="MsoNormal">Halves<o:p></o:p></p>
  • C. <p class="MsoNormal">Doubles<o:p></o:p></p>
  • D. <p class="MsoNormal">Four time<o:p></o:p></p>
10 <p class="MsoNormal">The colour of live wire is:<o:p></o:p></p>
  • A. <p class="MsoNormal">Black or blue<o:p></o:p></p>
  • B. <p class="MsoNormal">Green or yellow<o:p></o:p></p>
  • C. <p class="MsoNormal">White or grey<o:p></o:p></p>
  • D. <p class="MsoNormal">Red or brown<o:p></o:p></p>

Top Scorers of 10th Class Physics Chapter 18 Radioactivity English Medium KPK Boards Online Mcqs

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Saad Anas

Lahore24 - Jan - 2025

7/12
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Hamad Khan

Lahore16 - Jan - 2025

7/12
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Haleema

Lahore15 - Jan - 2025

6/12
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Muskan Khan

Lahore31 - Oct - 2024

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Ishtiaq Ahmad

Lahore08 - Dec - 2024

6/12
04 Mins 51 Sec

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