The characteristic X-ray radiation is emitted, when - Vidyadip

MCQ

The characteristic X-ray radiation is emitted, when

A
The electrons are accelerated to a fixed energy
B
The source of electrons emits a monoenergetic beam
✓
The bombarding electrons knock out electrons from the inner shell of the target atoms and one of the outer electrons falls into this vacancy
D
The valence electrons in the target atoms are removed as a result of the collision

✓

Answer

Correct option: C.

The bombarding electrons knock out electrons from the inner shell of the target atoms and one of the outer electrons falls into this vacancy

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "MCQ" from Electron, Photon, Photo-electric Effect and X-Rays→Electron, Photon, Photo-electric Effect and X-Rays — all question types→JEE physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

A radio transmitter radiates $1 \mathrm{~kW}$ power at a wavelength $198.6$ metres. How many photons does it emit per second

Two identical objects $A$ and $B$ are at temperatures $T$ and $T$. respectively. Both objects are placed in a room with perfectly absorbing walls maintained at temperatures $T\left(T_A>T>T_B\right)$. The objects $A$ and $B$ attain temperature $T$ eventually which one of the following is correct statement

A force $\boldsymbol{F}=-K(y \boldsymbol{i}+x \boldsymbol{j})$ (where $K$ is a positive constant) acts on a particle moving in the $x y$-plane. Starting from the origin, the particle is taken along the positive $x$-axis to the point $(a, 0)$ and then parallel to the $y$-axis to the point $(a, a)$. The total work done by the force $F$ on the particles is

An $\text{LC}$ resonant circuit contains a $400pF$ capacitor and a $100 \mu H$ inductor. It is set into oscillation coupled to an antenna. The wavelength of the radiated electromagnetic waves is

The acceleration of a particle performing S.H.M. is $cm sec at$ a distance of $3 cm$ from the mean position. Its time period is

Unit of magnetic moment is

One nanometre is equal to

Two satellites $A$ and $B$ go round a planet in circular orbits having radii $4 R$ and $R$, respectively. If the speed of satellite $A$ is $3 v$, then speed of satellite $B$ is

If the current is doubled, the deflection is also doubled in

A gardner waters the plants by a pipe of diameter $1 mm$. The water comes out at the rate or $10 cm / sec$. The reactionary force exerted on the hand of the gardner is