6. Size of image formed by a convex mirror is always
a) enlarged
b) diminished
c) equal to the size of object
d) depends on position of object
7. An object is placed at a certain distance on the principal axis of a concave mirror. The image is
formed at a distance of 30 cm from the mirror. Find the object distance if radius of curvature R =
15 cm
a) 15 cm
b) 10 cm
c) 30 cm
d) 7.5 cm
8. All the distances related to spherical mirrors will be measured from
a) object to image
b) focus of the mirror
c) pole of the mirror
d) image to object
9. The minimum distance from real object to a real image in a concave mirror is
a) 2f
b) f
c) 0
d) f/2
Suggested
Experiments
1. Conduct an experiment to find the focal length of concave mirror.
2. Find the nature and position of images, when an object is placed at different places on the
principal axis of a concave mirror.
Suggested Project Works
1. Collect information about the history of spherical mirrors in human civilization, write a report
on it.
2. Think about the objects which acts as concave or convex mirrors in your surroundings? Make
a table of these objects and display in your classroom.
3. Collect photographs from your daily life where you use convex and concave mirrors and
display in your class room.
4. Collect photographs from your daily life where you use convex and concave mirrors and
display in your class room.