Answer:- The various orbitals present in the same subshell possess equal energy.Thus the energy of all the three orbitals of any level is the same.These are called degenerate orbitals.
Answer:- When electrons are allowed to hit at zinc sulphide coated on a plate, each striking electron produces a spot of light called scintillation.This scintillation is not spread out of an area like a wave.so, electron has a particle nature.