| 1 |
<p class="MsoNormal">A converging lens becomes a magnifying glass when an object
is placed:<o:p></o:p></p> |
- A. <p class="MsoNormal">Outside of focal length<o:p></o:p></p>
- B. <p class="MsoNormal">Inside the focal length<o:p></o:p></p>
- C. <p class="MsoNormal">Equal of focal length<o:p></o:p></p>
- D. <p class="MsoNormal">At double of focal length<o:p></o:p></p>
|
| 2 |
The lines will be in the form of concentric circles, if conductor is: |
- A. Circular
- B. Straight
- C. Solenoid
- D. None of these
|
| 3 |
If the change of current in a circuit induces a current in another circuit, this phenomena is known as: |
- A. Self induction
- B. Mutual induction
- C. Electromagnetic induction
- D. None mutual induction
|
| 4 |
<p class="MsoNormal">The ray of light after reflection from concave mirror passes
through:<o:p></o:p></p> |
- A. <p class="MsoNormal">Centre<o:p></o:p></p>
- B. <p class="MsoNormal">Principal focus<o:p></o:p></p>
- C. <p class="MsoNormal">Pole<o:p></o:p></p>
- D. <p class="MsoNormal">Radius<o:p></o:p></p>
|
| 5 |
Number of poles in a magnet is: |
- A. One
- B. Two
- C. Three
- D. Unlimited
|
| 6 |
A.C generator works on the principle of: |
- A. Electrostatic induction
- B. Electromagnetic induction
- C. Law of gravitation
- D. Third law of motion
|
| 7 |
<p class="MsoNormal">In totally reflecting prism one angle is of 90°, and other
two angles are of:<o:p></o:p></p> |
- A. <p class="MsoNormal">30°,30°<o:p></o:p></p>
- B. <p class="MsoNormal">45°,90°<o:p></o:p></p>
- C. <p class="MsoNormal">45°,45°<o:p></o:p></p>
- D. <p class="MsoNormal">40°,40°<o:p></o:p></p>
|
| 8 |
A current carrying conductor produces a field around it is called: |
- A. Electric field
- B. Magnetic field
- C. Both a and b
- D. None of these
|
| 9 |
When an electric current passes through a conductor, which field is produced around it? |
- A. Electric field
- B. Magnetic field
- C. Gravitational field
- D. Electrostatic field
|
| 10 |
The presence of a magnetic field can be detected by a |
- A. small mass
- B. Stationary positive charge
- C. Stationary negative charge
- D. Magnetic compass
|
