By numbers, it's the string section. A full-sized orchestra has around 60 string players
The harp is a solo string instrument, BUT it belongs to the percussion family in the orchestra, as it is used mostly for special effects.
French horn
The bass viole ...
The bass viole ... or simply, bass.
writing
The harp is a solo string instrument, BUT it belongs to the percussion family in the orchestra, as it is used mostly for special effects.
The bass viole ...
French horn
If this is a rhythmic instrument you are referring to, it belongs in the percussion section.
The bass viole ... or simply, bass.
The String section has the most members in the orchestra.
violin
writing
"Wind" because you put your lips adjacent to the opening and blow softly across it causing the wind inside the tube to vibrate.
The piano, when not used as a solo instrument, could be part of the percussion section of an orchestra, as the instrument functions as a percussion instrument.
There is no guitar in a standard symphony orchestra. If the orchestra is playing a guitar concerto, the guitarist would sit in front of the orchestra, near the conductor, as would any other soloist.
The gong is part of the percussion section.