A compound microscope consists of an objective lens of focal length 1 cm and an eye piece of focal length 5 cm with a separation of 10 cm.
The distance between an object and the objective lens, at which the strain on the eye is minimum is `n/40cm`. The value of n is ___________

A compound microscope consists of an objects lens of focal length 2.0 cm and an eyepiece of focal length 20cm? If the system a converging or a diverging lens? Ignore thickness of the lenses.

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

A compound microscope consists of an objective of focal length 1 cm and an eyepiece of focal length 5 cm. An object is placed at a distance of 0.5 cm from the objective. What should be the separation between the lenses so that the microscope projects an inverted real image of the object on a screen 30 cm behind the eyepiece?

A telescope has an objective of focal length 100 cm and an eye-piece of focal length 5 cm. What is the magnifying power of the telescope when it is in normal adjustment?

A small telescope has an objective lens of focal length 150 cm and an eye piece of focal length 6.0 cm. The magnifying power of the telescope for distinct vision adjustment is:

A small telescope has an objective lens of focal length 150 cm and an eye piece of focal length 6.0 cm. The magnifying power of the telescope for distinct vision adjustment is:

A small telescope has an objective lens of focal length 144 cm and an eye-piece of focal length 6.0 cm . What is the magnifying power of the telescope ? What is the separation between the objective and the eye-piece ?

A small telescope has an objective lens of focal length 144 cm and an eye-piece of focal length 6.0 cm . What is the magnifying power of the telescope ? What is the separation between the objective and the eye-piece ?

A compound microscope consists of an objective lens with focal length 1.0 cm and eye piece of the focal length 2.0 cm and a tube 20 cm from eye lens. Now final image is formed at the near point of eye, so find the magnifying power of microscope.

A compound microscope consists of an objective of focal length 2 cm and an eye piece of focal length 5 cm. When an object is kept 2-4 cm from the objective, final image formed is virtual and 25 cm from the eye piece. Determine magnifying power of this compound microscope in this set up i.e... in normal use.