Question

Calculate the wavelength of the radiation whose energy is (a).3.97×10^-8 erg

Answer 1

E = (hc)/λ = (6.626 × 10⁻³⁴ "J·"cancel("s") × 2.998 × 10⁸cancel("m·s⁻¹"))/(5.00 × 10⁴ × 10⁻⁹cancel("m")) = 3.97 × 10⁻²¹"J"