It depends on which instrument you're talking about.
For example, a Bass Guitar has 4 strings while a regular guitar has 6. Violins all have 4 strings, whether they are bass or not. Each musical instrument will have its own number of strings depending on what sort of instrument it is.
Usually 4. (Viola, Violin, Cello, Bass).
The number of strings on a stringed instrument varies widely depending on the type. For example, a standard guitar typically has six strings, while a violin has four. Instruments like the harp can have multiple strings, sometimes exceeding 40, and the double bass usually has four strings, though some versions have five. Overall, the number of strings can range from one to over 40, depending on the instrument.
Depends on the instrument.
Orchestral string instruments all use 4 strings.
A Bajo de uñas is an instrument that can have between 4 and 6 strings and is comparable to the double bass. The four stringed version of the instrument is much more common than the 6 stringed variety.
Only the string holding the price tag. The sax is not a stringed instrument.
Usually 4. (Viola, Violin, Cello, Bass).
This varies from instrument to instrument - eg Guitar 6, Violin 4, Zither 34, Bandurria 12.
Harp
The shorter you make a string, the higher the pitch will be. You can notice that as someone plays the guitar, and they slide their fingers toward the body, the pitch gets higher. If you loosen a peg on a stringed instrument to elongate the string, the pitch drops because the frequency (how many vibrations per second) decreases.
The number of strings on a stringed instrument varies widely depending on the type. For example, a standard guitar typically has six strings, while a violin has four. Instruments like the harp can have multiple strings, sometimes exceeding 40, and the double bass usually has four strings, though some versions have five. Overall, the number of strings can range from one to over 40, depending on the instrument.
Depends on the instrument.
4
I think you're getting slightly confused with your terminology. The 'string family' comprises all the bowed stringed instruments in a standard orchestra: violins, violas, cellos (violoncellos), and double basses. Thus there are four types of instrument in the string family.
Orchestral string instruments all use 4 strings.
The double bass has 4 strings. It is a classical instrument that is related to the violin and cello, but is the largest in this family.There are basses that have more strings, but they are usually electric instruments, such as 5 or 6 stringed basses. As well, there are 8 and 12 string basses that have "duplicate strings" that are tuned to a higher octave to it's root string (similar to a 12-string guitar).
The Guitar is a stringed instrument in the lute family. Usually having 6 strings, they are plucked or strummed to cause the strings to vibrate, producing sound. The length of the string (and resulting vibration) is changed by pressing the string against a fretboard (fingerboard) which changes the pitch. Guitars are used to produce music in many a genre and are produced in many variations to suit.