Particle Physics Questions

Particle physics is also known as high energy physics. Particle physics is a branch of physics that deals with the basic elements of matter and radiation and their interaction.

Modern particle physics research is focused on subatomic particles with less structure than atoms.

The standard model of particle physics is a theory related to the electromagnetic and nuclear interactions and classifying the subatomic particles.

Read more: Particle Physics

Important Particle Physics Questions with Answers

1. What is particle physics?

Particle physics is a branch of physics that studies the fundamental building blocks of matter and the interactions between these fundamental particles.

2. List the subatomic particles.

Subatomic particles are protons, neutrons, and electrons.

3. What are the properties of the fundamental particles?

Some of the properties of fundamental particles are mass, electric charge, spin, and magnetism.

4. As per the standard model, how many elementary particles are seen?

1. 91
2. 71
3. 61
4. 81

Answer: c) 61

Explanation: The standard model has 61 elementary particles.

5. What is the formula to find the number of atoms?

1. N₀ = N + N_D
2. N₀ = N – N_D
3. N₀ = N × N_D
4. N₀ = N/N_D

Answer: a) N₀ = N + N_D

Explanation: The formula to find the number of atoms is N₀ = N + N_D.

6. The letter which represents an atomic number is _____.

1. A
2. N
3. Z
4. H

Answer: c) Z

Explanation: Z is the letter which represents an atomic number.

7. The spin of the quark is _____.

1. 0
2. 1
3. ½
4. 3/4

Answer: c) ½

Explanation: The spin of the quark is ½.

8. The decay constant is represented by ____.

1. \(\begin{array}{l}\alpha\end{array} \)
2. \(\begin{array}{l}\beta\end{array} \)
3. \(\begin{array}{l}\lambda\end{array} \)
4. \(\begin{array}{l}\varepsilon\end{array} \)

Answer: c) λ

Explanation: The decay constant is represented by λ.

9. The formula to find the mass number is _____.

1. A = Z – N
2. A = Z × N
3. A = Z + N
4. A = Z/N

Answer: c) A = Z + N

Explanation: A = Z + N is the formula to find the mass number.

10. State true or false: Practical physics helps to achieve the concept of a superconductor.

1. TRUE
2. FALSE

Answer: a) TRUE

Explanation: Yes, practical physics is used in achieving the concept of a superconductor.

Practice Questions

1. List the uses of practical physics.
2. What is the formula of radioactivity?
3. Explain the standard model of particle physics.
4. Why is particle physics known as high energy physics?
5. What is God’s particle?