A compound micrscope consists of an objective of focal length 1.0 cm and an eyepiece of focal length 5.0 cm separated by 12.2 c.a. At wht distance from the objective should a object be placed to focus it prope4y so that the final image is formed at the least distance of clear vision (25cm)? b. calculate the angular magnificationn in this case.

Explanation

For eyepiece, `V_(E) = 25 cm`., `f _(E)=+5 cm`
`rArr`  `U_(E)`= 4.17 cm = 4.2 cm
`L=v_(o) + |U_(E)| = 12.2 cm`, here `v_(O) = 8 cm`
  (a)`f_(O) = +1 cm`   `rArr`  `U_(o) = cap1.1 cm`
(b)`m=(V_(o))/(U_(o))[1+(D)/(f_(epsilon))]=((8)/(-1.1))[1+(25)/(5)]=-44`.