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12 Questions

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Ultrasound Scanner in Medical Imaging

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Questions and Answers

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?

Due to the vibration of different objects (correct)

By magnetic fields

By light

By heat

What property of sound determines its pitch?

Frequency (correct)

Wavelength

Speed

Amplitude

In sound propagation, what actually travels through the medium?

Energy of the sound Signup and view all the answers

What is the primary application of ultrasound mentioned in the text?

Detecting cracks and flaws in metal blocks Signup and view all the answers

Why can't ordinary sound waves be used to detect cracks and flaws in metal blocks?

They bend around corners and may not reflect back Signup and view all the answers

What type of frequencies are associated with infrasound?

Low frequencies Signup and view all the answers

How are ultrasonic waves able to travel even in the presence of obstacles?

By traveling along well-defined paths Signup and view all the answers

How does the doctor detect abnormalities like stones in the gall bladder using echocardiography?

By allowing ultrasonic waves to travel through the tissues of the body Signup and view all the answers

How are cracks or holes inside metal blocks detected using ultrasonic waves?

The ultrasound gets reflected back if there is a defect in the metal block Signup and view all the answers

How does a hearing aid help people with hearing loss?

By converting sound waves to electrical signals using a microphone Signup and view all the answers

How do ultrasound scanners work to produce images of internal organs?

By using ultrasonic waves that are reflected back from regions with tissue density changes Signup and view all the answers