How does sleet form? Raindrops freeze on their way down to Earth.

Tiny water droplets collide and form larger drops that fall to the ground.

Water vapor freezes into crystals.

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?