Which one of the following statements is an incorrect statement ?

Options

A. Sound intensity level is givenby `Delta L=10 log_(10) (I_(1))/(I_(0))` decibel.
B. If natural frequencies are written as multiples of fundamental frequencies then they are said to be overtones.
C. In a closed organ odd harmonics are formed.
D. An open pipe odd and even harmonics are formed.

Answer

B

Explanation

If natural frequencies are multiples of fundamental frequency then they are said tobe harmonics.