| 1 |
Which instrument measures the potential difference: |
- A. Voltmeter
- B. Barometer
- C. Galvanometer
- D. Ammeter
|
| 2 |
<p class="MsoNormal">The mirror whose outer surface is reflecting is called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Concave mirror<o:p></o:p></p>
- B. <p class="MsoNormal">Convex mirror<o:p></o:p></p>
- C. <p class="MsoNormal">Mirror<o:p></o:p></p>
- D. <p class="MsoNormal">Lens<o:p></o:p></p>
|
| 3 |
<p class="MsoNormal">The point through which rays of light pass after reflection
from concave mirror is called principal:<o:p></o:p></p> |
- A. <p class="MsoNormal">Focus<o:p></o:p></p>
- B. <p class="MsoNormal">Circle<o:p></o:p></p>
- C. <p class="MsoNormal">Axis<o:p></o:p></p>
- D. <p class="MsoNormal">Radius<o:p></o:p></p>
|
| 4 |
As the temperature of a conductor rises, its resistance. |
- A. Increase
- B. Decrease
- C. Does not change
- D. None of these
|
| 5 |
The A.C. used in our houses has frequency _____ cycle/sec |
|
| 6 |
<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>
|
| 7 |
<p class="MsoNormal">The distance between principal focus and pole of mirror is
called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Principal focus<o:p></o:p></p>
- B. <p class="MsoNormal">Focal length<o:p></o:p></p>
- C. <p class="MsoNormal">Aperture<o:p></o:p></p>
- D. <p class="MsoNormal">Image<o:p></o:p></p>
|
| 8 |
<p class="MsoNormal">The characteristics of sound by which we can distinguish
between two sounds of same loudness and pitch is called.<o:p></o:p></p> |
- A. <p class="MsoNormal">Intensity<o:p></o:p></p>
- B. <p class="MsoNormal">Quality<o:p></o:p></p>
- C. <p class="MsoNormal">Loudness<o:p></o:p></p>
- D. <p class="MsoNormal">Pitch<o:p></o:p></p>
|
| 9 |
The combined resistance of two identical resistors, connected in series is 8Ω. Their combined resistance in a parallel arrangement will be: |
- A. 2Ω<p class="MsoNormal"><!--[endif]--><span style="font-size:14.0pt;
line-height:107%;font-family:"Times New Roman",serif;mso-ascii-theme-font:major-bidi;
mso-hansi-theme-font:major-bidi;mso-bidi-theme-font:major-bidi"><o:p></o:p></span></p>
- B. 4Ω
- C. 8Ω
- D. 12Ω
|
| 10 |
The equivalent resistance of a parallel combination is |
- A. equal to sum of all resistance
- B. is greater than the largest resistance of combination
- C. is smaller than the smallest resistance of combination
- D. All of these
|
