Question:

A compound microscope of tube length 200mm, magnifying power 400 has objective of focal length 10mm. The focal length of eye-pie

A compound microscope of tube length 200mm, magnifying power 400 has objective of focal length 10mm. The focal length of eye-piece will be (under normal adjustment)
O 250
-mm
19
O 200
mm
19
O 500
-mm
19
O 150
-mm
19

A compound microscope of tube length 200mm, magnifying power 400 has objective of focal length 10mm. The focal length of eye-piece will be (under normal adjustment) O 250 -mm 19 O 200 mm 19 O 500 -mm 19 O 150 -mm 19