" What are degenerate orbitals? "

Degenerate orbital have:

Which subshell has '5' degenerated orbitals?

Spectral line would not ne seen for a 2p_x - 2p_z transition p-orbitals are degenerate orbitals.

Transition of electron between p_x and p_y would not lead to an spectral line. p-orbitals are degenerate orbitals.

Spectral line would not ne seen for a 2p_x - 2p_z transition p-orbitals are degenerate orbitals.

What do you mean by degenerate orbitals? Give examples