| 1 |
Image distance for a virtual image is always taken. |
Zero
+2
Positive
Negative
|
| 2 |
The pole of spherical mirror is also called. |
Principal axis
Focus
Vertex
Focal leangth
|
| 3 |
The image formed by a convex mirror is. |
Real and upright
Real and inverted
Virtual and upright
Virtual and inverted
|
| 4 |
Which type of image is formed in Plane Mirror. |
Real
Real and virtual
Virtual
None of these
|
| 5 |
In a convex mirror, focus is. |
Under the mirror
In front of the mirror
On the mirror
Behind the mirror
|
| 6 |
-------------------- is/are used to coat the backside of the mirror. |
Silver
Copper
Aluminium
Silver and Aluminium
|
| 7 |
There are ......... types of reflection |
2
3
4
5
|
| 8 |
It takes about.......... minutes for light from the Sun to reach the Earth. |
6
7
8
9
|
| 9 |
When light falls on transparent object such as air, water, glass ,etc. It passes through them unchanged, it is called. |
Absorption
Reflection
Transmission
Diffusion
|
| 10 |
Angle of incidence is equal to he angle of reflection ,It is first law of. |
Refraction
Dispersion
Reflection
Diffraction
|
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