A diverging lens with magnitude of focal length `25 cm` is placed at a distance of `15 cm` from a converging lens of magnitude of focal length `20 cm`. A beam of parallel light falls on the diverging lens. The final image formed is.

A luminous object is placed at a distance of 40 cm from a converging lens of focal length 25 cm. The image obtained in the screen is

An illuminated object is placed at a distance of 20 cm from a converging lens of focal length 15 cm. The image obtained on the screen is:

A converging lens of focal length 20cm is separated 8 cm from a diverging lens of focal length 30 cm. A parallel beam of light falls on converging lens and after passing through diverging lens focussed at point P. Find the location of point P. Repeat the calculation for the case when the parallel beam first falls on diverging lens. [4.2 cm from convex lens]

A converging lens L_(1) of focal length 20 cm is separated by 8 cm from a diverging lens L_(2) of focal length 30cm. A parallel beam of light falls on L_(1) after passing through L_(2) is focussed at point P. Calculate V.

A converging lens of focal length 5.0cm is placed in contact with a diverging lens of focal length 10.0cm. Find the combined focal length of the system.

A converging lens of focal length 5.0cm is placed in contact with a diverging lens of focal length 10.0cm. Find the combined focal length of the system.