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Questions and Answers
Who is credited with the discovery of X-rays?
Who is credited with the discovery of X-rays?
What is the approximate wavelength range of X-rays?
What is the approximate wavelength range of X-rays?
What is the frequency range of X-rays in hertz?
What is the frequency range of X-rays in hertz?
In which field are X-rays widely used for identifying weak points in construction materials?
In which field are X-rays widely used for identifying weak points in construction materials?
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What were X-rays considered before their discovery in 1895?
What were X-rays considered before their discovery in 1895?
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What is the frequency range of ultrasound used in ultrasonic devices?
What is the frequency range of ultrasound used in ultrasonic devices?
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Who demonstrated that bats hunted and navigated by inaudible sound, not vision?
Who demonstrated that bats hunted and navigated by inaudible sound, not vision?
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In which field is ultrasound used to detect invisible flaws in products and structures?
In which field is ultrasound used to detect invisible flaws in products and structures?
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Who invented the Galton whistle, an adjustable whistle that produced ultrasound?
Who invented the Galton whistle, an adjustable whistle that produced ultrasound?
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When was the first article on the history of ultrasound written?
When was the first article on the history of ultrasound written?
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Study Notes
X-rays
- Wilhelm Conrad Röntgen is credited with the discovery of X-rays.
- X-rays have an approximate wavelength range of 0.01 to 10 nanometers.
- The frequency range of X-rays is approximately 3 x 10^16 to 3 x 10^19 hertz.
- X-rays are widely used in non-destructive testing (NDT) for identifying weak points in construction materials.
Ultrasound
- Before the discovery of X-rays in 1895, they were considered to be unknown types of radiation.
- The frequency range of ultrasound used in ultrasonic devices is above 20,000 hertz.
- Biologist Donald R. Griffin demonstrated that bats hunted and navigated by inaudible sound, not vision.
- Ultrasound is used in non-destructive testing (NDT) to detect invisible flaws in products and structures.
- Francis Galton invented the Galton whistle, an adjustable whistle that produced ultrasound.
- The first article on the history of ultrasound was written in 1962.
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Description
Test your knowledge of X-rays and their properties with this engaging quiz. Challenge yourself with questions about X-ray wavelengths, its discovery, and its characteristics.
