The focal lengths of the objective and eyepiece of a microscope are 4mm and 25 mm respectively, and the length of the tube is 16cm. If the final image is formed at infinity and the least distance of distinct vision is 25 cm, then calculate the magnifying power of the microscope.

The focal length of the objective and eye lenses of a microscope are 1.6 cm and 2.5 cm respectively. The distance between the two lenses is 21.7 cm. If the final image is formed at infinity. What is the linear magnification ?

The focal length of the objective and the eyepiece of a microscope are 4mm and 25mm respectively.If the final image is formed at infinity and the length of the tube is 16cm the magnifying power of the microscope will be

The focal lengths of the objective and eyelens of a microscope are 1.6 cm and 2.5 cm respectively. The distance between the two lenses is 21.7 cm. If the final image is formed at infinity, the distance between the object and the objective lens is :

The focal lengths of the eye piece and objective of a compound microscope are 5 cm and 1 cm respectively, and the length of the tube is 20 cm . Calculate magnifying power of microscope when the final image is formed at inifinity. The least distance of distinct cision is 25 cm .

The focal length of the objectives and the eyepiece of an astronomical telescope are 60cm and 5cm respectively .Calculate the magnifying power and the length of the telescope when the final image is formed at(i)infinity,(ii)least distance of distinct vision (25cm)

The focal lengths of the objective and the eye piece of an astronomical telescope are 60 cm and 5 cm respectively. Calculate the magnifying power and the length of the telescope when the final image is formed at (i) infinity, (ii) least distance of distinct vision (25 cm)

Least distance of distinct vision is 25 cm . Magnifying power of simple microscope of focal length 5 cm is

The focal lengths of the objective and the eyepiece of a compound microscope are 1.0 cm and 5.0 cm respectively. An object, placed at a distance of 1.1 cm from the objective, has its final image formed at a distance of 25 cm from the eye. Find the magnifying power of the microscope.

The focal length of the objective of an astronomical telescope is 75 cm and that of the eye-piece is 5 cm. If the final image is formed at the least distance of distinct vision from the eye, calculate the magnify- ing power of the telescope.