when using the equation 1/λ = R(1/(n2^2) – 1/(n1^2)) in chemistry, how many sig figs can the wavelength be?

Question

The values of n are orbitals so they are assumed to be infinite sig figs. Also, R is a constant so it too is infinite sig figs. Does this mean wavelength is known to infinite sig figs? That makes little sense

Answer 1

Since both R and n are constants, I would go with a safe 3 or 4, depending on what you usually use for R.