What is the lowest value of 'n' that allows 'g' orbitals to exist?

Which of the following orbitals does NOT exist?

What is the value of 'g' at the centre of Earth ?

What is the value of 'g' at the centre of the Earth?

What is the value of the shunt resistance that allows 20% of the main current through a galvanometer of 99 Omega ?.

What is the shape of the orbits of planets?

What are the values of n for the shells K,L and M?

The lowest energy orbital among the following is:

What is meant by the orbit of satellite?