| 1 |
Angle of incidence is equal to he angle of reflection ,It is first law of. |
- A. Refraction
- B. Dispersion
- C. Reflection
- D. Diffraction
|
| 2 |
There are ......... types of reflection |
|
| 3 |
Speed of light through glass is about. |
- A. 300000 km /s
- B. 250000 km/s
- C. 225000 km /s
- D. 200000 km/s
|
| 4 |
Which type of image is formed in Plane Mirror. |
- A. Real
- B. Real and virtual
- C. Virtual
- D. None of these
|
| 5 |
Image distance for a virtual image is always taken. |
- A. Zero
- B. +2
- C. Positive
- D. Negative
|
| 6 |
How is the angle of incidence related to the angle of reflection. |
- A. It is greater
- B. It is smaller
- C. It is same
- D. None of these
|
| 7 |
The pole of spherical mirror is also called. |
- A. Principal axis
- B. Focus
- C. Vertex
- D. Focal leangth
|
| 8 |
When light falls on transparent object such as air, water, glass ,etc. It passes through them unchanged, it is called. |
- A. Absorption
- B. Reflection
- C. Transmission
- D. Diffusion
|
| 9 |
Speed of light through air is about. |
- A. 300000 km/s
- B. 250000 km/s
- C. 225000 km /s
- D. 200000 km /s
|
| 10 |
In a convex mirror, focus is. |
- A. Under the mirror
- B. In front of the mirror
- C. On the mirror
- D. Behind the mirror
|
