What happens to magnifying power of a microscope when length of its tube its increased?

For relaxed eye,magnifying power of a microscope is

Define the magnifying power of compound microscope.

What is mangnifying power of a microscope? What is it equal to?

Define resolving power of a compound microscope. How does the resolving power of a compound microscope change when wavelength of radiation used is increased.

Define the magnifying power of a compound microscope when the final image is formed at infinity. Why must both the objective and the eye piece of a compound microscope has short focal length? Explain.

On what factors does magnifying power of telescope depend?

The focal length of th eye-piece and ojective a compound microscope are 5 cm and 1 cm respectively and the length of the tube is 20 cm.Calculate he magnifying power of the microscope,when the final image is formed at infinity .The value of least distance of ditinct vision is 25cm.

What is the magnifying power of an astronomical telescope when the final image of a distant object is formed at least distance of distinct vision?