10 Questions
Who is credited with the discovery of X-rays?
Wilhelm Conrad Röntgen
What is the approximate wavelength range of X-rays?
10 nanometers to 10 picometers
What is the frequency range of X-rays in hertz?
30 petahertz to 30 exahertz
In which field are X-rays widely used for identifying weak points in construction materials?
Material science
What were X-rays considered before their discovery in 1895?
Unidentified radiation emanating from experimental discharge tubes
What is the frequency range of ultrasound used in ultrasonic devices?
20 kHz up to several gigahertz
Who demonstrated that bats hunted and navigated by inaudible sound, not vision?
Lazzaro Spallanzani
In which field is ultrasound used to detect invisible flaws in products and structures?
Nondestructive testing
Who invented the Galton whistle, an adjustable whistle that produced ultrasound?
Francis Galton
When was the first article on the history of ultrasound written?
1948
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.
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.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
