| 1 |
<p class="MsoNormal">The center of curved surface of spherical mirror is called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Focus<o:p></o:p></p>
- B. <p class="MsoNormal">Axis<o:p></o:p></p>
- C. <p class="MsoNormal">Centre<o:p></o:p></p>
- D. <p class="MsoNormal">Pole<o:p></o:p></p>
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| 2 |
<p class="MsoNormal">The diameter of spherical mirror is called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Curvature<o:p></o:p></p>
- B. <p class="MsoNormal">Aperture<o:p></o:p></p>
- C. <p class="MsoNormal">Sphere<o:p></o:p></p>
- D. <p class="MsoNormal">Both a and b<o:p></o:p></p>
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| 3 |
Mathematical form of Ohm's law is: |
- A. V = IR
- B. V = I2R
- C. V = Qt
- D. V = IR2
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| 4 |
<p class="MsoNormal">AND operation is represented by:<o:p></o:p></p> |
- A. <p class="MsoNormal">Dot (.)<o:p></o:p></p>
- B. <p class="MsoNormal">Addition (+)<o:p></o:p></p>
- C. <p class="MsoNormal">Division (<span style="font-family: Arial, sans-serif; color: rgb(34, 34, 34); background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">÷</span>)<o:p></o:p></p>
- D. <p class="MsoNormal">Minus (-)<o:p></o:p></p>
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| 5 |
The resistance of voltmeter is: |
- A. zero
- B. low
- C. Very high
- D. 10Ω
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| 6 |
The property of substance, which opposes the flow of current through it is called. |
- A. Resistance
- B. Reactance
- C. Resistivity
- D. None of these
|
| 7 |
As the temperature of a conductor rises, its resistance. |
- A. Increase
- B. Decrease
- C. Does not change
- D. None of these
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| 8 |
When resistance are connected in series the current passing through them is . |
- A. Different
- B. Zero
- C. The same
- D. None of these
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| 9 |
Specific resistance of silver = ________ x 10<sup>-s</sup>Ohm-meter |
- A. 5.25
- B. 2.75
- C. 1.69
- D. 1.62
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| 10 |
<p class="MsoNormal">The index of refraction depends on:<o:p></o:p></p> |
- A. <p class="MsoNormal">The focal length<o:p></o:p></p>
- B. <p class="MsoNormal">The speed of light<o:p></o:p></p>
- C. <p class="MsoNormal">The image distance<o:p></o:p></p>
- D. <p class="MsoNormal">The object distance<o:p></o:p></p>
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