What is the difference between the measured values of 1.05m and 1.050m? What factor of a measurement tool determines the sig figs of a measured value?

The two values are different because of their sig figs, the first has 3 and the other has 4. I think that the factor of a measurement tool that determines the sig figs is the least count.

Are my answers correct? Thank you!

1 answer

If it was 1.0500000m, would there be eight significant figures?