A diverging lens with the magnitude of focal length 25 cm is placed at a distance of 15 cm from a converging lens of the magnitude of focal length 20 cm. A beam of parallel light falls on the diverging lens. The final image formed is
-
real and at a distance of 40 cm from the divergent lens
-
real and at a distance of 6 cm from the convergent lens
-
real and at a distance of 40 cm from the convergent lens
-
virtual and at a distance of 40 cm from the convergent lens
C.
real and at a distance of 40 cm from the convergent lens
As parallel beam incident on diverging lens if forms virtual image at v1 = –25 cm from the diverging lens which works as an object for the converging lens (f = 20 cm)
So for converging lens u = -40 cm, f = 20 cm
therefore final image
V = 40 cm from the converging lens.
