The Neutral Pion Decays by π⁰ → 2_ϒ

question 21

Multiple Choice

The neutral pion decays by π⁰ → 2_ϒ. The mass of the neutral pion is 135 MeV/c². What is the energy of each of the photons if the pion is at rest when it decays?

• A) 270 MeV
• B) 135 MeV
• C) 67.5 MeV
• D) 1.02 MeV

Understand the distinction between cognitive miser and motivated tactician models in social psychology.

Grasp the concept of recency effect and its implications in perception and memory.

Comprehend the role and evidence of cognition in social psychology through various models.

Learn about social cognition and its relevance to linking cognition and social behavior.

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