Which of the following can be used in sonar? Options: A . &nbspADP B . &nbspRescelle salt C . &nbspADP and Roscelle salt D . &nbspADP and Roscelle salt in sealed condition

Which of the following can be used in sonar?

Question - Which of the following can be used in sonar?

Options:

A . ADP

B . Rescelle salt

C . ADP and Roscelle salt

D . ADP and Roscelle salt in sealed condition

Answer: Option D
Answer: (d).ADP and Roscelle salt in sealed condition

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