Can you explain how does this make your calculation of gradient correct?
Is this 1/3.7*10*6 = 1/(3.7 × 10
6) OR 1/3.7*10*6 = (1/3.7) × 10
6?
Not sure why you post in maths forum when it is a physics problem on photoelectric effect.
Let talk about some physics.
Say we have a value of 3.5 on the x-axis. What does 1/λ mean?
λ1=3.5×106→λ=3.5×1061=2.9×10−7mhttps://www.wolframalpha.com/input?i=1%2F%283.5*10%5E6%29This wavelength corresponds to the uv region of the EM spectrum which is feasible for the photoelectric effect to occur.
If I use 1/λ = 1/3.5*10*6 = 1/(3.5 × 10
6), this implies that the wavelength is 3.5 × 10
6 m. This wavelength makes no sense in photoelectric effect.
This is what we call a sanity check of your working.