Physics The normal ear is the most sensitive in the frequency range___________________? Options:A. 20000 to 30000 hertzB. 10 to 20 hertzC. 2000 to 4000 hertzD. 6000 to 8000 hertzView AnswerC. 2000 to 4000 hertz Continue Reading Previous: A stationary wave is set up in the air column of a closed pipe. At the closes end of the pipe _____________________?Next: Fundamental frequency of stationary waves in open pipe is ______________ times the frequency in closed pipe?