3.14.5　Data recording and processing

3.14.5　Data recording and processing

Record observations and calculated results in Table 3.14.1-Table 3.14.3,respectively.

Table 3.14.1　The measurement of λ and ρ

Table 3.14.2　The measurement of wave velocity(https://www.daowen.com)

Table 3.14.3　The measurement of frequency