posted by Peter .
Calculate the frequency of radiation with a wavelength of 1.27 × 104 °A (angstroms).
Answer in units of s^−1.
I got 8.34080793e-25. Is that right?
DOesn't look right to me.
Can you elaborate on the steps?
Is the answer 2.362204724e14 Hz?
That looks ok to me (the last figure that is).
are you in whites class?