Discovery of X-Rays

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What did WC Roentgen notice when investigating the conduction of electricity through gases in glass tubes?

Visible light passing through black paper

Charged particles being deflected in a magnetic field

Invisible rays making fluorescent screens glow and fogging photographic plates (correct)

Electric and magnetic fields influencing the rays

What type of radiation are X-rays?

Beta particles

Electromagnetic radiation of very short wavelength (correct)

Charged particles

Visible light

Why were X-rays named 'X-rays' by Roentgen?

Because they were found to be charged particles

Because they were deflected in a magnetic field

Because their nature was not known at the time of discovery (correct)

Because they were visible to the naked eye

What effect do X-rays have on substances through which they pass?

They produce ionization, excitation, and chemical changes Signup and view all the answers

What is the basis for the production of X-rays?

Collision of fast-moving electrons with the target material Signup and view all the answers

What happens when a fast-moving electron undergoes ionizational collisions in the target material?

The incident electron removes an electron from the atom, resulting in ionization of target atoms Signup and view all the answers

How does a 100 keV electron typically behave before coming to rest in the target material?

It encounters numerous ionizational collisions altering its direction and producing heat in the target Signup and view all the answers

What is the role of the displaced electron, known as a secondary electron, in X-ray production?

It may have sufficient energy to produce further ionization of target atoms Signup and view all the answers

What is the basis for the production of X-rays?

Interaction of electrons with the target material Signup and view all the answers

What happens when a fast moving electron is stopped by a target material?

Its kinetic energy is converted into heat and X-rays Signup and view all the answers

What is the result of ionizational collisions between the fast moving electron and the target atoms?

Removal of an electron from the atom Signup and view all the answers

What happens to the kinetic energy of fast moving electrons when they are suddenly stopped by a target material?

It is converted into heat and X-rays Signup and view all the answers

Discovery of X-Rays

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Questions and Answers

What did WC Roentgen notice when investigating the conduction of electricity through gases in glass tubes?

What type of radiation are X-rays?

Why were X-rays named 'X-rays' by Roentgen?

What effect do X-rays have on substances through which they pass?

What is the basis for the production of X-rays?

What happens when a fast-moving electron undergoes ionizational collisions in the target material?

How does a 100 keV electron typically behave before coming to rest in the target material?

What is the role of the displaced electron, known as a secondary electron, in X-ray production?

What is the basis for the production of X-rays?

What happens when a fast moving electron is stopped by a target material?

What is the result of ionizational collisions between the fast moving electron and the target atoms?

What happens to the kinetic energy of fast moving electrons when they are suddenly stopped by a target material?

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