| 1 |
Half of radius of curvature is called: |
- A. Focal length
- B. Principal focus
- C. Axis
- D. None of these
|
| 2 |
Spherical mirrors are used in: |
- A. Medical
- B. Search light
- C. Microscope
- D. All of these
|
| 3 |
In a convex mirror the size of the image: |
- A. Is smaller than the size of the object
- B. Is greater than the size of the object
- C. Depends upon the position of the object
- D. Is equal to the size of the object
|
| 4 |
<p class="MsoNormal">A device which has two ways communication is:<o:p></o:p></p> |
- A. <p class="MsoNormal">Television<o:p></o:p></p>
- B. <p class="MsoNormal">Radio<o:p></o:p></p>
- C. <p class="MsoNormal">Hard disk<o:p></o:p></p>
- D. <p class="MsoNormal">Mobile phone<o:p></o:p></p>
|
| 5 |
When light passes through a prism it deviates from its original path due to: |
- A. Reflection
- B. Diffraction
- C. Interference
- D. Refraction
|
| 6 |
Image formed on a camera is: |
- A. real,invertred, and diminished
- B. virtual, upright and diminshed
- C. virtual, upright and magnified
- D. real, inverted and magnified
|
| 7 |
The angle of which prism deviates the incident ray is called: |
- A. angle of incident
- B. angle of reflection
- C. angle of deviation
- D. angle of minimum deviation
|
| 8 |
<p class="MsoNormal">The distance between two consecutive waves compressions or
rarefactions is called:<o:p></o:p></p> |
- A. <p class="MsoNormal">Focal length<o:p></o:p></p>
- B. <p class="MsoNormal">Wave length<o:p></o:p></p>
- C. <p class="MsoNormal">Frequency<o:p></o:p></p>
- D. <p class="MsoNormal">Time period<o:p></o:p></p>
|
| 9 |
If focal length of a lens is 1m, then its power will be: |
- A. 1 D
- B. 0.5 D
- C. 1.5 D
- D. 1 D
|
| 10 |
<p class="MsoNormal">A data storage device is:<o:p></o:p></p> |
- A. <p class="MsoNormal">Printer<o:p></o:p></p>
- B. <p class="MsoNormal">Hard disk<o:p></o:p></p>
- C. <p class="MsoNormal">Monitor<o:p></o:p></p>
- D. <p class="MsoNormal">CPU<o:p></o:p></p>
|