ExamPlay Dark Logo
Пријавите се

Physics for IGCSE & O level - Waves And Sounds (Section 2 - No. 6)

The human ear can detect sounds up to a frequency of about:
20 Hz
20 kHz
20 MHz
20 GHz

Објашњење

The human ear can detect sounds up to a frequency of about 20 kHz.

Коментари (0)

Реклама