Q: 28 (NDA-II/2011)

ExamRobot is now available as Android Mobile APP. Please use the APP for the most up-to-date features and updates.


 Get it on Google Play
Ultrasonic waves are those sound waves having frequency
question_subject: 
Science
question_year: 
2011
question_exam: 
NDA-II
stats: 
0,368,256,80,96,368,80