For an atom of hydrogen without the effects of an external magnetic field, an electron transition from the 3P subshell to the 2P subshell is called a forbidden transition. Why is this so? a) An atom that changes energy through transitioning must either absorb or emit a photon. b) Electrons in hydrogen are forbidden from transitioning in that way due to peculiarities unique to solutions of Schrödinger's equation for hydrogen. c) Since the electron at low energies must pass through the nucleus, nuclear effects prevent certain transitions to orbits through the nucleus. d) The normal Zeeman effect prohibits certain transitions from occurring.

77yvcdrykcxdfddfggg is it is my uncle quotes in a rude way home time and I will give u rare hair and the skirt I did everything they could u do some too plz

i don't know that i agree with that but what's the question ?

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia