A student wants to establish a standing
wave on a wire 1.1 m long clamped at both
ends. The wave speed is 403 m/s.
What is the minimum frequency she should
apply to set up standing waves?
Answer in units of Hz.

The answer is b hope this

Ireally don’t know

The answer is 4f======since electrostatic force is given by    we let f be the electrostatic force when  r = 1 m    if we let  denote the electrostatic force when the distance is decreased so that r = 0.5m, then    we established earlier that f = kq₁q₂. therefore    the force will now be 4f.

The answer is a your welcome