Where to pluck and where to touch a stretched string to excite its first overtone ?

If a stretched string is plucked at the centre

If a stretched string is plucked at the centre

What points of teh stretched string betweeen two fixed points must be plucked and touched to excite its first overtone?

A string clamped at both ends vibrates in its fundamental mode. Is there any position (except the ends) on the string which can be touched without disturbing the motion ? What if the string vibrates in its first overtone ?

A string clamped at both ends vibrates in its fundamental mode. Is there any position (except the ends) on the string which can be touched without disturbing the motion ? What if the string vibrates in its first overtone ?

A string clamped at both ends vibrates in its fundamental mode. Is there any position (except the ends) on the string which can be touched without disturbing the motion ? What if the string vibrates in its first overtone ?

How is the frequency of a stretched string related to: Its tension?

A student plucks at the center of a stretched string tube it and observes the wave pattern produced.Plot the above wave pattern pictorially. Label the each nodes and the antinodes on the pattern.

How is the frequency of a stretched string related to: Its length?