Relax

Respuesta :

Answer:    2.126  × 10⁻¹ m

Explanation:

wavelength = speed of light  ÷  frequency

wavelength =  (2.998 × 10⁸  m/s)  ÷ (1.41 x 10⁹  /s)

                     =   2.126  × 10⁻¹ m