You have a diverging lens of focal length-20cm.
a) for what range of object distances will the image be larger than the object?
b) for what range of object distances will the image be smaller than the object?
c) for what range of object distances will the image be upright?
d) for what range of object distances will the image be inverted?
e) for what range of object distances will the imgae be real?
f) for what range of object distances will the image be virtual?