- #1

- 57

- 13

- TL;DR Summary
- .

So, I have a question.

The time dilation formula is:

t = t₀ • 1 / √(1 - v²/c²)

Let's take a photon that travels at c. In my opinion, for a photon "clock doesn't tick" and its life is just a moment.

But when we calculate time dilation by this formula, then c over c is 1 and the root of 1 minus 1 is 0. So we get 1 over 0. We can't divide by zero. So time dilation for a photon should not be either zero or infinite.

How is it?

The time dilation formula is:

t = t₀ • 1 / √(1 - v²/c²)

Let's take a photon that travels at c. In my opinion, for a photon "clock doesn't tick" and its life is just a moment.

But when we calculate time dilation by this formula, then c over c is 1 and the root of 1 minus 1 is 0. So we get 1 over 0. We can't divide by zero. So time dilation for a photon should not be either zero or infinite.

How is it?