What is the effect of increasing diameter of the objective of a telescope on its magnifying power?

What is the effect of increasing PH on solution of Potassium dichromate.

Describe a Terrestrial telescope. Calculate its magnifying power.

What is the effect on resistance, if the length of wire is increased

Define the term 'resolving power of a telescope'. How will the resolving power be affected with the increase in Diameter of the objective lens? Justify your answer.

What is the effect on resistance, if the area of cross section is increased.

with the help of labelled diagram, explain the formation of final image at least distance of distinct vision in case of astronomical telescope. Define its magnifying power and derive an expression for its magnifying power.

When the length of a microscope tube is increased,its magnifying power

The objective of telescope A has a diameter 3 times that of the objective of telescope B.How much greater amount of light is gathered by A as compared to B?