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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)

10th Class Physics Chapter 18 KPK Boards Online Test

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

1 <p class="MsoNormal">A thermistor is a dependent resistors:<o:p></o:p></p>
• A. <p class="MsoNormal">Heat<o:p></o:p></p>
• B. <p class="MsoNormal">temperature<o:p></o:p></p>
• C. <p class="MsoNormal">energy<o:p></o:p></p>
• D. <p class="MsoNormal">mass<o:p></o:p></p>
2 <p class="MsoNormal">As the temperature of a conductor rises, its resistance:<o:p></o:p></p>
• A. <p class="MsoNormal">Increases<o:p></o:p></p>
• B. <p class="MsoNormal">Increases<o:p></o:p></p>
• C. <p class="MsoNormal">Decreases<o:p></o:p></p>
• D. <p class="MsoNormal">Does not change<o:p></o:p></p>
• E. <p class="MsoNormal">None of these<o:p></o:p></p>
3 The phenomenon in which radiations convert the matter into positive and negative ions is called:
• B. Excitation
• C. Ionization
• D. Electrolysis
4 <p class="MsoNormal">for which of following ampere second could be the unit:<o:p></o:p></p>
• A. <p class="MsoNormal">energy<o:p></o:p></p>
• B. <p class="MsoNormal">current<o:p></o:p></p>
• C. <p class="MsoNormal">charge<o:p></o:p></p>
• D. <p class="MsoNormal">power<o:p></o:p></p>
5 <p class="MsoNormal">The A.C used in Pakistan has frequency:<o:p></o:p></p>
• A. <p class="MsoNormal">60 Hz<o:p></o:p></p>
• B. <p class="MsoNormal">30 Hz<o:p></o:p></p>
• C. <p class="MsoNormal">50 Hz<o:p></o:p></p>
• D. <p class="MsoNormal">130 Hz<o:p></o:p></p>
6 <p class="MsoNormal">What is the power rating of a lamp connector to a 12 V source when it carries 2.5 A:<o:p></o:p></p>
• A. <p class="MsoNormal">4.8W<o:p></o:p></p>
• B. <p class="MsoNormal">14.5W<o:p></o:p></p>
• C. <p class="MsoNormal">30W<o:p></o:p></p>
• D. <p class="MsoNormal">60W<o:p></o:p></p>
7 <p class="MsoNormal">Watt is equal to:<o:p></o:p></p>
• A. <p class="MsoNormal">Coulomb per second<o:p></o:p></p>
• B. <p class="MsoNormal">Newton per second<o:p></o:p></p>
• C. <p class="MsoNormal">Volt per second<o:p></o:p></p>
• D. <p class="MsoNormal">Joule per second<o:p></o:p></p>
8 The number of neutrons in the nucleus of tritium is:
• A. 1
• B. 2
• C. 3
• D. 4
9 <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>
10 <p class="MsoNormal">battery is one of the source of:<o:p></o:p></p>
• A. <p class="MsoNormal">heat<o:p></o:p></p>
• B. <p class="MsoNormal">light<o:p></o:p></p>
• C. <p class="MsoNormal">current<o:p></o:p></p>
• D. <p class="MsoNormal">sound<o:p></o:p></p>

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

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#### Darya Khan

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#### Raheel Khan

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#### Manal

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