What is the significance of the Planck time?
A)It is the time at which inflation is thought to have occurred.
B)Before it,conditions were so extreme that our current understanding of physics is insufficient to predict what might have occurred.
C)It is the time when the cosmic microwave background was released.
D)It is the amount of time required for two protons to fuse to make deuterium.

Question

Quizplus · Accepted Answer

The Planck time is the smallest unit of time that has physical meaning, and before it, conditions were so extreme that our current understanding of physics is insufficient to predict what might have occurred. It is the time scale at which classical notions of space and time lose their significance, and quantum mechanical effects dominate.

What Is the Significance of the Planck Time