| 1 |
<p class="MsoNormal">In compound microscope, the objective have focal length than
eye-piece:<o:p></o:p></p> |
- A. <p class="MsoNormal">Smaller<o:p></o:p></p>
- B. <p class="MsoNormal">Larger<o:p></o:p></p>
- C. <p class="MsoNormal">Equal<o:p></o:p></p>
- D. <p class="MsoNormal">Equal and larger<o:p></o:p></p>
|
| 2 |
Which type of energy is converted into mechanical energy in the D.C. Motor. |
- A. Magnetic energy
- B. Heat energy
- C. Electrical energy
- D. Chemical energy
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| 3 |
<p class="MsoNormal">Two uncharged objects a and b are rubbed against each other.
When object b is placed near a negatively charged object c, the two objects
repel each other. Which of these statements is true about object a:<o:p></o:p></p> |
- A. <p class="MsoNormal">Remains uncharged<o:p></o:p></p>
- B. <p class="MsoNormal">Becomes positively charged<o:p></o:p></p>
- C. <p class="MsoNormal">Becomes negatively charged<o:p></o:p></p>
- D. <p class="MsoNormal">Unpredictable<o:p></o:p></p>
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| 4 |
Transformer Works on the principle of: |
- A. Self induction
- B. Mutual induction
- C. Electro statatic
- D. Induction
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| 5 |
Number of poles in a magnet is: |
- A. One
- B. Two
- C. Three
- D. Unlimited
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| 6 |
<p class="MsoNormal">Spherical mirrors are used in:<o:p></o:p></p> |
- A. <p class="MsoNormal">Medical<o:p></o:p></p>
- B. <p class="MsoNormal">Search light<o:p></o:p></p>
- C. <p class="MsoNormal">Microscope<o:p></o:p></p>
- D. <p class="MsoNormal">All of these<o:p></o:p></p>
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| 7 |
<p class="MsoNormal">The speed of light in water is:<o:p></o:p></p> |
- A. <p class="MsoNormal">2.0x10<sup>3</sup> ms<sup>-1</sup><o:p></o:p></p>
- B. <p class="MsoNormal">2.5x10<sup>3</sup> ms<sup>-1</sup><o:p></o:p></p>
- C. <p class="MsoNormal">2.3x10<sup>8</sup> ms<sup>-1</sup><o:p></o:p></p>
- D. <p class="MsoNormal">2.3x10<sup>-8</sup> ms<sup>-1</sup><o:p></o:p></p>
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| 8 |
The voltage is decreased by: |
- A. Step-up transformer
- B. Step-down transformer
- C. A.C. generator
- D. D.C. Motor
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| 9 |
<p class="MsoNormal">The refractive index of ice is:<o:p></o:p></p> |
- A. <p class="MsoNormal">1.00<o:p></o:p></p>
- B. <p class="MsoNormal">1.33<o:p></o:p></p>
- C. <p class="MsoNormal">1.31<o:p></o:p></p>
- D. <p class="MsoNormal">2.42<o:p></o:p></p>
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| 10 |
The number of lines of force in a magnetic field depends upon. |
- A. Shape of coil
- B. Sixe of coil
- C. Magnet
- D. Strength of field
|