The frequency of ultrasound waves is

examrobotsa's picture
Q: 17 (NDA-II/2018)
The frequency of ultrasound waves is

question_subject: 

Science

question_exam: 

NDA-II

stats: 

0,7,7,1,2,4,7

keywords: 

{'ultrasound waves': [0, 0, 0, 2], 'frequency': [0, 0, 1, 3], 'khz': [0, 0, 1, 2], 'hz': [0, 0, 4, 8]}