A man can hear a sound of frequency |
|||||||
(a) |
1 Hz |
(b) |
1000 Hz |
(c) |
200 kHz |
(d) |
5 MHz |
A man can hear a sound of frequency |
|||||||
(a) |
1 Hz |
(b) |
1000 Hz |
(c) |
200 kHz |
(d) |
5 MHz |