| 1 |
Power of lens is: |
- A. q/p
- B. 1/q
- C. 1/p
- D. 1/f
|
| 2 |
The centre of spherical mirror is called: |
- A. Focus
- B. Axis
- C. Centre
- D. Pole
|
| 3 |
Snell' law is: |
- A. n = sin<x/sin <r
- B. n=sin <i/sin<r
- C. n = sin <r/sin<i
- D. <i/<r
|
| 4 |
The ray of the light after reflection from concave mirror passes through: |
- A. Centre
- B. Principal focus
- C. Pole
- D. None of these
|
| 5 |
When a ray of light enters from denser medium to rare medium, the angle of incidence for which angle of refraction is 90<sup>o</sup> is called: |
- A. angle of incidence
- B. critical angle
- C. angle of refrection
- D. None of these
|
| 6 |
Snell's law is stated as: |
- A. Sin i / sin r = n1/n2
- B. sin i / sin r = n2/n1
- C. sin r / sin i = n2/n1
- D. sin r / sin i = 2n2/n1
|
| 7 |
<p class="MsoNormal">Which of the following is not processing:<o:p></o:p></p> |
- A. <p class="MsoNormal">Arranging<o:p></o:p></p>
- B. <p class="MsoNormal">Manipulating<o:p></o:p></p>
- C. <p class="MsoNormal">Calculating<o:p></o:p></p>
- D. <p class="MsoNormal">Gathering<o:p></o:p></p>
|
| 8 |
The minimum value of angle of deviation is called: |
- A. Minimum angle
- B. incident angle
- C. angle of minimum deviation
- D. None of these
|
| 9 |
The ray of light striking to the side of prism is called: |
- A. refraction ray
- B. incident ray
- C. reflected ray
- D. emergent ray
|
| 10 |
Concave mirror formula is given by: |
- A. R = 2r
- B. sin<i/sin<r
- C. 1/f=1/p+1/q
- D. 1/f=1/p-1/q
|