| 1 |
Speed of light is denoted by. |
l
s
d
c
|
| 2 |
Speed of light through glass is about. |
300000 km /s
250000 km/s
225000 km /s
200000 km/s
|
| 3 |
Speed of light through water is about. |
300000 km/s
250000 km/s
225000 km /s
200000 km/s
|
| 4 |
Speed of light through air is about. |
300000 km/s
250000 km/s
225000 km /s
200000 km /s
|
| 5 |
How is the angle of incidence related to the angle of reflection. |
It is greater
It is smaller
It is same
None of these
|
| 6 |
What happens when light hits a shiny or smooth surface. |
It is disappeared
It is refracted
It is absorbed
It is reflected
|
| 7 |
Which of the following type of mirror can form an image larger than the object. |
Plane
Convex
Concave
All of these
|
| 8 |
What is the colour of an object that absorb all the light that hits it. |
Black
Green
White
Red
|
| 9 |
Through which of the following the light travels the fastest. |
Prism
Water
Air
Vacuum
|
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