What is the wavelength of radiation with a frequency of 2.7 * 10¹⁸m? A) 1.1 * 10^-11 cm B) 1.1 * 10^-11 m C) 9.9 * 10^-11 m D) 9.9 * 10^-11 cm E) 3.0 * 10^-11 m

Question

Quizplus · Accepted Answer

We use the formula: 
λ=c/ν

where 
λ = wavelength (in m)
c = speed of light (3.0 x 10^8 m/s)
ν = frequency (in Hz)

Plugging in the values, we get: 
λ= 3.0 x 10^8 m/s / 2.7 x 10^10 Hz 
λ = 1.11 x 10^-2 m 
λ = 1.1 x 10^-2 m = 11 mm

Thus the best choice is B, which gives the answer in meters.

What Is the Wavelength of Radiation with a Frequency of 2.7