Wednesday Homework Problem $14\mathrm{.}8$ An optical instrument is built from a diverging lens $($lens $1)$ with focal

length $15$cm and a converging lens $($lens $2)$ with focal length $25$cm$.$ The lenses are place $20$cm apart. An object

is placed $10$cm from lens $1.$

$($a$)$Compute the final image location of the instrument. Report a distance from lens $2$ with the correct sign.

$($b$)$Compute the total magnification of the instrument.

$($c$)$Describe the final image of the instrument. Support your description.