Question

what is plank time quantam theory and plank mass
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Answer 1

Originally Answered: What is the significance of Plank's time? One Planck time is the time it would take a photon traveling at the speed of light in a vacuum to cross a distance equal to one Planck length . Theoretically, this is the smallest time measurement that will ever be possible, roughly 10−43 seconds.

Answer 2

Answer:

The Planck time is the time it would take a photon travelling at the speed of light to across a distance equal to the Planck length. This is the 'quantum of time', the smallest measurement of time that has any meaning, and is equal to 10-43 seconds.

In physics, the Planck mass, denoted by mP, is the unit of mass in the system of natural units known as Planck units. It is approximately 21 micrograms, or roughly the mass of a flea egg.

Unlike some other Planck units, such as Planck length, Planck mass is not a fundamental lower or upper bound; instead, Planck mass is a unit of mass defined using only what Max Planck considered fundamental and universal units. For comparison, this value is of the order of 1015 (a quadrillion) times larger than the highest energy available to particle accelerators as of 2015.

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