Question

The wavelength of light that has a frequency of 2.40x10^13 s-1 ____m.

Answer 1

Wavelength and Frequency are inversely related to each other as,

υ = c / λ ----- (1)
Where;
υ = Frequency = 2.40 × 10¹³ s⁻¹

c = 2.99 × 10⁸ ms⁻¹

λ = ?

Solving equation 1 for λ,

λ = c / υ

Putting Values,
λ = 2.99 × 10⁸ ms⁻¹ ÷ 2.40 × 10¹³ s⁻¹

λ = 0.00001245833 m
Or,
λ = 1.24 × 10⁻⁵ m