| 1 |
The mirror whose outer surface is reflecting is called: |
- A. Concave mirror
- B. Convex mirror
- C. Lens
- D. Mirror
|
| 2 |
Totally reflecting prism turns the incident ray at an angle of: |
- A. 90<sup>o</sup>
- B. 60<sup>o</sup>
- C. 75<sup>o</sup>
- D. 45<sup>o</sup>
|
| 3 |
To see stomach problems we use: |
- A. Gastroscope
- B. Bronchoscope
- C. Cystoscope
- D. All of these
|
| 4 |
The principal focus of a concave mirror is: |
- A. Virtual
- B. Real
- C. Imaginary
- D. Dual aspect
|
| 5 |
The index of refraction depends on: |
- A. The focal length
- B. The speed of light
- C. the image distance
- D. The object distance
|
| 6 |
Power of lens is: |
- A. q/p
- B. 1/q
- C. 1/p
- D. 1/f
|
| 7 |
Power of convex lens is 10 D. Its focal length is: |
- A. 100 m
- B. 10 m
- C. 1 m
- D. 0.1 m
|
| 8 |
The distance of image from mirror is represented by: |
|
| 9 |
<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>
|
| 10 |
Mathematical relationship between critical angle "C" and refractive index "n" is: |
- A. N = C
- B. N = 1 / sin c
- C. N = 1 / cos c
- D. N = 1 / sin2 c
|
