General

Question 0

Used for astronomical study of…..

Answer 0

Neutron stars

Question 1

Can be generated artificially by….

Answer 1

Bombarding a target with energy.

Question 2

An object emitting X-rays is very hot, around……

Answer 2

12 000 ‘C

Question 3

Shell order, inner to outer….

Answer 3

S - P - D

Question 4

Wavelength range…..

Answer 4

0.1 nm - 10 nm, shorter than visible light.

Question 5

Difference between XRF and XRD?

Answer 5

XRF is used to determine element composition, whereas XRD is used to identify crystal structure.

Question 6

Region so the EMS….

Answer 6

Uv (generally to the left of visible light)

Question 7

Frequency range?

Answer 7

10 ^21 Hz to 10 ^17 Hz

Question 8

Shorter wavelength =

Answer 8

Higher frequency and higher energy

Question 9

X-rays can be used in a SEM for…..

Answer 9

Elemental analysis.

Question 10

What happens when an energy beam hits the atom in X-ray generation?

Answer 10

An electron is knocked from the inner shell. An electron from a higher shell falls to fill the vacancy. As a result an X-ray photon is emitted.