The wavelength of light that has a frequency of 1.20 × 10¹³s^-¹is _ m. A) 2.5 B) 2.50 × 10^-⁵ C) 0.0400 D) 25.0 E) 12.0

Question

Quizplus · Accepted Answer

We can use the formula:

c = λν

where c is the speed of light (which we assume to be 3.00 × 10^8 m/s), λ is the wavelength, and ν is the frequency. Rearranging to solve for wavelength, we get:

λ = c/ν

Plugging in the given frequency, we get:

λ = (3.00 × 10^8 m/s)/(1.20 × 10^13 Hz)
λ = 2.50 × 10^-5 m

Converting to scientific notation, we get 2.50 × 10^-5 m or 2.50 × 10^-2 μm or 25 nm. The correct answer is B, which is the value expressed in scientific notation.

The Wavelength of Light That Has a Frequency of 1