A baton
The conductor of an orchestra helps to keep the music in time and communicate changes to the musicians.
It varies greatly, could be as few as around 12 or as many as 40. The type of music and the conductor determines this.
orchestra's conductor wave to keep time
A perfect conductor will perfectly reflect an incident wave.
The first chair of the first violin section is called the concertmaster or concertmistress. They are considered to be the leader of the orchestra. The conductor can play any instrument.
The conductor uses a baton to direct an orchestra.
The cast of The Miracle of Stereophonic Sound - 1954 includes: Alfred Newman as Himself - Conductor of the Twentieth Century-Fox Symphony Orchesta
When an electromagnetic wave is incident on a perfect conductor, all of the wave is reflected. This results in a reflection coefficient of +1, indicating that 100% of the wave is reflected back.
Conductor/baton
Usually 2 to 4.
wave a
The person who heads or direct the orchestra\ band is called as "Conductor" or "Maestro".