Q. With reference to Piezoelectric effect, consider the following statements:
1.It is the ability of certain materials to generate an electric charge in response to applied mechanical stress.
2.The process is irreversible.
3.The process can only be found in solids.
Which of the statements given above is/are correct?
Answer: B
Notes:
Explanation –
Statement 1 is correct. Piezoelectric effect is the ability of certain materials to generate an electric charge in response to applied mechanical stress.
Statement 2 and 3 are incorrect. One of the unique characteristics of the piezoelectric effect is that it is reversible. Until now, the effect was only found in solids but scientists have recently discovered the piezoelectric effect in liquids.
Source: ForumIAS
