Quantum Entanglement: Unraveling the Mystery of Linked Particles

Question 1

Which of the following is **not** a characteristic of quantum entanglement?

Accepted Answer

Classical correlation

Answer

Instantaneous influence

Answer

Non-locality

Answer

Superposition

Question 2

Which of the following is **not** a potential application of quantum entanglement?

Accepted Answer

Classical computing

Answer

Quantum computing

Answer

Quantum cryptography

Answer

Quantum imaging

Question 3

What is the name of the experiment that provided strong evidence for quantum entanglement?

Accepted Answer

Aspect experiment

Answer

Michelson-Morley experiment

Answer

Stern-Gerlach experiment

Answer

Double-slit experiment

Question 4

Which of the following best describes the phenomenon where two entangled particles can exhibit correlated behaviour even when separated by large distances?

Accepted Answer

Quantum entanglement

Answer

Quantum coherence

Answer

Quantum teleportation

Answer

Quantum superposition

Question 5

Quantum entanglement refers to the phenomenon where:

Accepted Answer

Two or more particles are linked and instantly influence each other's states, regardless of their distance apart.

Answer

Particles can communicate faster than the speed of light.

Answer

Particles can exist in multiple states simultaneously.

Answer

Particles' behavior is determined by their position.

Question 6

The EPR paradox challenges the principle of:

Accepted Answer

Local realism in quantum mechanics.

Answer

Instantaneous communication between entangled particles.

Answer

Quantum indeterminacy.

Answer

Wave-particle duality.

Question 7

According to the principle of superposition in quantum mechanics:

Accepted Answer

A particle can exist in multiple states simultaneously.

Answer

A particle can only exist in one state at a given time.

Answer

A particle's state is determined by its position.

Answer

A particle's state is determined by its momentum.

Question 8

The key difference between two-particle entanglement and multi-particle entanglement is that:

Accepted Answer

Two-particle entanglement involves two particles, while multi-particle entanglement involves more than two particles.

Answer

Two-particle entanglement is stronger than multi-particle entanglement.

Answer

Two-particle entanglement is only possible with identical particles, while multi-particle entanglement can occur with different types of particles.

Answer

There is no difference between two-particle entanglement and multi-particle entanglement.

Question 9

The Bell test was a seminal experiment that demonstrated:

Accepted Answer

Quantum entanglement

Answer

Wave-particle duality

Answer

The uncertainty principle

Answer

Special relativity

Question 10

Local realism in the context of quantum entanglement assumes that:

Accepted Answer

Physical properties of particles are independent and not influenced by distant events.

Answer

Quantum entanglement is impossible.

Answer

The state of one particle can instantly affect the state of another particle, regardless of distance.

Answer

Particles can exist in multiple states simultaneously.

Question 11

Regarding the speed of communication in quantum entanglement:

Accepted Answer

Information cannot be transmitted through quantum entanglement.

Answer

Information can be transmitted faster than the speed of light.

Answer

Information can be transmitted at the speed of light.

Answer

The speed of communication in quantum entanglement is unknown.

Question 12

Which of the following accurately describes quantum entanglement?

Accepted Answer

Entangled particles share the same wave function.

Answer

A physical connection exists between entangled particles.

Answer

One entangled particle's state can be entirely predicted without measuring the other.

Answer

Entanglement is spontaneous and uncontrollable.

Question 13

What is the main idea behind the EPR paradox?

Accepted Answer

It challenges the principle of locality in quantum mechanics.

Answer

It provides a mathematical proof against the possibility of entanglement.

Answer

It demonstrates the wave-particle duality of electrons.

Answer

It explains the origin of the universe.

Question 14

What is the defining characteristic of entangled particles?

Accepted Answer

Their properties remain correlated despite separation.

Answer

They are always identical particles.

Answer

They are always separated by a vast distance.

Answer

They always travel at the speed of light.

Question 15

Define the principle of superposition in quantum mechanics.

Accepted Answer

A particle can exist in multiple states simultaneously.

Answer

A particle's state is only determined upon observation.

Answer

A particle's wave function collapses upon interaction with another particle.

Answer

A particle's energy is always quantized.

Question 16

What is the significance of the Bell inequality in quantum mechanics?

Accepted Answer

It is a mathematical formula that quantum entanglement can violate.

Answer

It is a theorem stating that hidden variables cannot explain quantum entanglement.

Answer

It is an equation describing the wave function of entangled particles.

Answer

It is a measurement device used to detect entangled particles.

Question 17

What is the purpose of a quantum repeater?

Accepted Answer

Extending the distance over which entangled particles can be transmitted

Answer

Creating entangled particles over large distances

Answer

Measuring the properties of entangled particles

Answer

Computing with entangled particles

Question 18

In the EPR paradox, which assumption about reality is challenged by quantum entanglement?

Accepted Answer

Locality

Answer

Objectivity

Answer

Determinism

Answer

Consistency

Question 19

What is the process in quantum mechanics by which a system can exist in multiple states simultaneously?

Accepted Answer

Superposition

Answer

Entanglement

Answer

Schrödinger's Cat

Answer

Wave-particle duality

Question 20

Which of the following is NOT a feature of entangled particles?

Accepted Answer

Their properties are independent of each other.

Answer

They share a common wavefunction.

Answer

Their states are correlated.

Answer

They can be separated by large distances.

Question 21

Which of the following is a consequence of Bell's theorem?

Accepted Answer

Hidden variables cannot explain quantum entanglement.

Answer

Quantum mechanics is an incomplete theory.

Answer

Quantum entanglement is a purely classical phenomenon.

Answer

The universe is deterministic.

Question 22

What is the role of entanglement in quantum teleportation?

Accepted Answer

It allows for the transmission of quantum information without physically moving qubits.

Answer

It enables the creation of new qubits remotely.

Answer

It provides a way to measure the state of a qubit without disturbing it.

Answer

It enhances the speed of classical communication.