4

Set 1: Central Ideas (Advanced)

Explanation

Answer: D

PASSAGE

The following text describes Quantum Entanglement. Quantum entanglement is a physical phenomenon that occurs when a pair or group of particles is generated, interact, or share spatial proximity in a way such that the quantum state of each particle cannot be described independently of the state of the others, including when the particles are separated by large distances. Einstein famously derogated this as 'spooky action at a distance.' Measurement of a physical property, such as position or momentum, performed on one particle of an entangled pair determines the value for the other particle instantaneously.

What particular feature of quantum entanglement did Einstein criticize?

A. The inability to measure position and momentum simultaneously
B. The instantaneous correlation of states across large distances
C. The fact that particles can exist in multiple places at once
D. The mathematical complexity of the equations✓ Correct

Detailed Explanation

Choice B is correct. His phrase 'spooky action at a distance' refers to the phenomenon where measurement of one 'determines the value for the other... instantaneously' despite 'large distances.'

Key Evidence:

• "spooky action at a distance"

• "determines the value for the other particle instantaneously"

Why others are wrong: A (Refers to Uncertainty Principle, not Entanglement), C (Refers to Superposition, not the specific critique mentioned), D (Not mentioned).

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