| 1 |
Which of the following is non-magnetic substace |
iron
Steel
Silver
Nickel
|
| 2 |
Which of the following is magnetic substance. |
Glass
Marble
Gold
Cobalt
|
| 3 |
A close circuit is the. |
Complete path of electric current
Incomlete path of electric current
Broken path of electric current
None of the above
|
| 4 |
An electric circuit is the path along whihc. |
Electron revolve around the nucleus of an atom
Electric charge flows.
Magnetic lines of force move
Electric motors move
|
| 5 |
Image distance for a virtual image is always taken. |
Zero
+2
Positive
Negative
|
| 6 |
The pole of spherical mirror is also called. |
Principal axis
Focus
Vertex
Focal leangth
|
| 7 |
The image formed by a convex mirror is. |
Real and upright
Real and inverted
Virtual and upright
Virtual and inverted
|
| 8 |
Which type of image is formed in Plane Mirror. |
Real
Real and virtual
Virtual
None of these
|
| 9 |
In a convex mirror, focus is. |
Under the mirror
In front of the mirror
On the mirror
Behind the mirror
|
| 10 |
-------------------- is/are used to coat the backside of the mirror. |
Silver
Copper
Aluminium
Silver and Aluminium
|
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