A Galileo telescope has an objective of focal length `100cm` and magnifying power 50. The distance between the two lenses in normal adjustment will be

A compound microscope has an objective of focal length 2 cm and eye-piece of focal length 5 cm. The distance between the two lenses is 25 cm. If the final image is at a distance of 25 cm from the eye-piece, find the magnifying power of the microscope. What would be the magnifying power if the microscope were reversed ?

A telescope uses an objective lens of focal length f_0 and an eye lens of focal length f_e . In normal adjustment, distance between the two lenses is.

A Galilean telescope has objective and eyepiece of focal lengths 200 cm and 2cm respectively. The magnifying power of the telescope for normal vision is

A Galilean telescope has objective and eye - piece of focal lengths 200 cm and 2cm respectively. The magnifying power of the telescope for normal vision 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 140 cm and eye piece of focal length 5.0 cm . What is the magnifying power of telescope for viewing distant objects when (a) the telescope is in normal adjustment (i.e. when the image is at infinity) (b) the final image is formed at the least distance of distinct vision (25 cm) .

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 telescope consists of an objective of focal length 50 cm and an eyepiece of focal length 5 cm. In normal adjustment of the telescope, what will be (i) the magnifying power and (ii) the length of the telescope.