Find the distance between the two lenses of a compound microscope if the final image formed by the microscope is virtual and lies at a distance of 25cm to the left of the eye- piece. Magnifying power of the microscope is 30 and focal lengths of objective and eyepiece are 2cm and 5cm, respectively.

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

The magnification produced by the objective lens of a compound microscope is 25. The focal length of eye piece is 5 cm and it forms find image at least distance of distinct vision. The magnifying power of the compound microscope is

In a compound microscope , the magnificent virtual image is found at a distance of 25 cm from the eye-piece . The focal length of its objective lens is 1 cm. If the microspore is 20 cm , then the focal length of the eye-piece lens ( in cm) is .................

When a telescope is adjusted for parallel light, the distance of the objective from the eye piece is found to be 80 cm . The magnifying power of the telescope is 19 . The focal length of the lenses are

Magnifying power of a simple microscope is (when final image is formed, at D=25cm from eye)

When a telescope is in normal adjusment, the distance of the objective from the eyepiece is found to 100 cm . If the magnifying power of the telescope, at normal adjusment, is 24 focal lengths of the lenses are

Define the magnifying power of a compound microscope when the final image is formed at infinity. Why must both the objective and the eyepiece of a compound microscope have short focal lengths ? Explain.

In a simple microscope, if the final image is located at 25 cm from the eye placed close to the lens, then the magnifying power is:

A compound microscope consists of two convex lenses having focal length of 1.5cm and 5cm. When an object is kept at a distance of 1.6cm from the objective, the final image is virtual and lies at a distance of 25cm from the eyepiece. Calculate magnifying power of the compound microscope in this set-up.

A compound microscope consists of two convex lenses having focal length 1.5 cm and 5 cm. When an objectt is kept at distance of 1.6 cm from the objective, the final image is virtual and lies at a distance of 25 cm from the eyepiece. Calculate magnifying power of the compound microscope in this set-up.