Question

which of the following are used to dishwater or to wash the machines
A. Infra-sonic waves
B. Ultra-sonic wave
C.Both (A) and (B)
D.Neither (A) or (B)​

Answer 1

Answer:

b. ultra sonic waves is the answer

Answer 2

Answer:

which of the following are used to dishwater or to wash the machines

B. Ultra-sonic wave

Explanation:

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