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Q: Which is the incorrect statement with regard to ultrasound waves?
  • A. They are high frequency waves
  • B. They are used in industries and for medical purposes
  • C. They travel among well-defined path even in the presence of obstacles
  • D. Ultrasound cannot be reflected back from defective locations
Correct Answer: Option D - Ultrasound is the sound wave of high frequencies which is used in many fields such as construction, medical field, communications etc. • Ultrasound can be used to detect the defects in the metal blocks. They are allowed to pass through the metal blocks. Ultrasound wave can also be reflected back from defective locations hence the statement of option (d) is incorrect statement regard to ultrasound wave.
D. Ultrasound is the sound wave of high frequencies which is used in many fields such as construction, medical field, communications etc. • Ultrasound can be used to detect the defects in the metal blocks. They are allowed to pass through the metal blocks. Ultrasound wave can also be reflected back from defective locations hence the statement of option (d) is incorrect statement regard to ultrasound wave.

Explanations:

Ultrasound is the sound wave of high frequencies which is used in many fields such as construction, medical field, communications etc. • Ultrasound can be used to detect the defects in the metal blocks. They are allowed to pass through the metal blocks. Ultrasound wave can also be reflected back from defective locations hence the statement of option (d) is incorrect statement regard to ultrasound wave.