Podcast
Questions and Answers
What type of waves does an ultrasound scanner use?
What type of waves does an ultrasound scanner use?
- Infrared waves
- Ultrasonic waves (correct)
- Ultraviolet waves
- X-rays
How is sound produced according to the text?
How is sound produced according to the text?
- Due to the vibration of different objects (correct)
- By magnetic fields
- By light
- By heat
What property of sound determines its pitch?
What property of sound determines its pitch?
- Frequency (correct)
- Wavelength
- Speed
- Amplitude
In sound propagation, what actually travels through the medium?
In sound propagation, what actually travels through the medium?
What is the primary application of ultrasound mentioned in the text?
What is the primary application of ultrasound mentioned in the text?
Why can't ordinary sound waves be used to detect cracks and flaws in metal blocks?
Why can't ordinary sound waves be used to detect cracks and flaws in metal blocks?
What type of frequencies are associated with infrasound?
What type of frequencies are associated with infrasound?
How are ultrasonic waves able to travel even in the presence of obstacles?
How are ultrasonic waves able to travel even in the presence of obstacles?
How does the doctor detect abnormalities like stones in the gall bladder using echocardiography?
How does the doctor detect abnormalities like stones in the gall bladder using echocardiography?
How are cracks or holes inside metal blocks detected using ultrasonic waves?
How are cracks or holes inside metal blocks detected using ultrasonic waves?
How does a hearing aid help people with hearing loss?
How does a hearing aid help people with hearing loss?
How do ultrasound scanners work to produce images of internal organs?
How do ultrasound scanners work to produce images of internal organs?
