Question

5. A convex lens forms a real, diminished point
sized image at focus. Then the position of the
object is at
a) focus
c) at 2f
b) infinity
d) between fand 2f

6. Power of a lens is -4D, then its focal length is
b) -40m
c) -0.25 m
d) -2.5 m
a) 4m​

Answer 1

Answer:

Convex mirror do not form real image if it is erected image the it is at f