[问答题]
In Fig. 12–16, if the freque
qz+r)o2lez no 8o mq,/ncy
obcj ro0t;q : (if:pc;of the speakers were lowered, would the points D and C (where destructive and constructive interference occur) move
b: t;(c0;co jorip: qffarther apart or closer together?
参考答案:
If
the frequency of the speakers is lowered, then the wavelength will be
increased. Each circle in the diagram
will be larger, and so the points C and D will move farther apart.
本题详细解析:
暂无
