Q40
Which of the following are piezo electric substances? 1. Barium titanate 2. Lead titanate 3. Lead Zirconate 4. Cadmium and sulphate
A.
1, 2 and 4
B.
1, 3 and 4
C.
1, 2 and 3
AnswerD.
2, 3 and 4
Answer: Option C
Solution
Answer: Option C
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