How does the mutual inductacne of a pair of coils get affected when
the number of turns in each coil is decreased? Explain your answer in each case?

How does the mutual inductacne of a pair of coils get affected when distance between coils is increased? Explain your answer in each case?

How does the self inductance of an air coil change, when the number of turns in the coil is decreased?

How does the mutual inductacne of a pair of coils get affected when a tahin iron sheet is placed between the two coils, other factors remaining the same?

How does the self inductance of an air coil change, when an iron rod is introduced in the coil?

How does the resolving power of a compound microscope get affected on decreasing the diameter of its objective?

The number of turns of a coil is doubled. How will its self-inductance be effected?

What is the effect on interference pattern in Young's double slit experiment when separation between two slits is increased. Explain your answer in each case.