An Electron and a Positron,which Are Two Massive Particles,can Annihilate

question 54

Multiple Choice

An electron and a positron,which are two massive particles,can annihilate when they come together to produce two photons,which have no mass.This pair annihilation is an example of

• A)time dilation.
• B)length contraction.
• C)the equivalence of mass and energy.
• D)the principle of relativity.
• E)none of the above.

---

Definitions:

Hockey Gear

Equipment and apparel used in playing hockey, including sticks, helmets, pads, and skates.

NHL

Stands for National Hockey League, a professional ice hockey league in North America, comprising teams from both the United States and Canada.

High-involvement Purchases

Purchases that require significant thought and research from the consumer due to their complexity or high cost.

Greater Risk

Increased chance of encountering a negative event, loss, or threat, often considered in decision-making processes.