How is a fluoroscope different to an x-ray you would have to check for a broken arm.
The fluoroscope uses a fluorescent screen to create a real time (moving) image.
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15
When light cross a boundary from air to glass (fast to slower speed), will it bend towards or away from the normal line?
Towards (the angle of refraction is smaller than the angle of incidence)
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15
A prism can be used to split white light into the colours that make it up. What is this process called??
Refraction or dispersion
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15
Define the frequency of a wave
The number of complete waves which pass a point every second.
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15
We orbit the Sun at a distance of about 150 million km. Light moves at 300,000 kilometers/second. How long does it take for light to reach the Earth from the sun.
500s or 8mins 20s
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15
What type of waves do bats use to navigate in the dark?
Ultrasound, Longitudinal
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15
Why would a patient need to consume a barium meal if they were having an x-ray to examine their intestine?
These areas of the body cannot normally be seen on x-ray images unless coated in a white liquid called barium contrast.
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15
What type of wave is a Radio wave?
Transverse
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15
What type of wave is ultrasound?
Longitudinal
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eraser
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15
When measuring the angle of incidence and refraction, how and where should you draw the normal line?
At the point where the wave crosses the boundary, at 90o to the boundary.
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15
What is the angle between the particle oscillation and the energy propagation of a transverse wave?
90o or perpendicular
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15
How does a CAT scan create a 3D image of a patient?
X-rays are used to create an image of a "slice" of the patient. Multiple image slices are stacked like a loaf of bread to create a 3D image.
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15
What is the equation that links frequency with time period?
