HomeGeneral KnowledgeUltrasonic waves are those sound waves having frequency __________? 6679. Ultrasonic waves are those sound waves having frequency __________?By Admin / September 20, 2025 A. between 20 hertz and 1000 hertz B. between 1000 hertz and 20000 hertz C. less than 20 hertz D. more than 20 kilohertz ✅ The correct answer is option D.
1. In which field is the Dhanwantri Award given? Leave a Comment / Awards and Honours MCQs, General Knowledge / By Admin
2. Which of the following awards was conferred on Mrs. Kiran Bedi? Leave a Comment / Awards and Honours MCQs, General Knowledge / By Admin