11.
The type of mirror used in automobiles to see the traffic on the rear side is

12.
If you look into a mirror and find that the image (your reflection) is smaller than you, then the type of the mirror is:

13.
Which one of the following reflects back more sunlight as compared to other three?

15.
Convex mirror is generally used in ________

16.
In total internal reflection, the light travel from

17.
Convex mirrors are used as a rear view mirror in motor cycles because

18.
A convex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be :

19.
The phenomenon which causes mirage is