The lens A produces a magnification of, -0.6 whereas lens B produces a magnification of + 0.6. (a) What is the nature of lens A ? (b) What is the nature of lens B ?
a) m=-0.6
Magnification is less than 1 that means diminished image and negative sign imply inverted and real image.
b) m=0.6
Magnification is less than 1 that means diminished image and positive sign imply erect and real image.