. For hearing an echo, the time interval between the
original sound and echo should be
(a) 1/10 of a second
(b) Less than 1/10 of a second
(c) More than 1/10 of a second
(d) None of these
Answer Posted / guest
(c) More than 1/10 of a second
| Is This Answer Correct ? | 3 Yes | 0 No |
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