Final answer:
The wavelength of a wave with a frequency of 2.49 x 10⁹⁴ Hz is 1.20 x 10⁻⁶ meters when the speed of light is 2.998 x 10⁸ m/s.
Step-by-step explanation:
To calculate the wavelength of a wave when the frequency is given, we use the formula c = λf, where c is the speed of light, λ is the wavelength, and f is the frequency. Given a frequency of 2.49 x 10¹⁴ Hz, and the speed of light is 2.998 x 10⁸ m/s, you can calculate the wavelength using the rearranged formula λ = c / f.
Substituting the values into the formula gives us:
λ = (2.998 x 10⁸ m/s) / (2.49 x 10¹⁴ Hz)
= 1.20 x 10¹⁻⁶ m
So, the wavelength of the wave is 1.20 x 10¹⁻⁶ meters when expressed in scientific notation to two decimal places without units.