What is the frequency of a photon having a wavelength of 141.8 nm? (c = 3.00 × 10⁸ m/s,h = 6.63 × 10^-34 J · s) A)2.12 × 10^-3Hz B)2.14 × 10²⁶Hz C)2.12 × 10¹⁵Hz D)1.4 × 10^-36Hz E)1.4 × 10^-18Hz

Question

Quizplus · Accepted Answer

We can use the formula:

c = λν

where c is the speed of light, λ is the wavelength, and ν is the frequency.

Rearranging the equation to solve for frequency:

ν = c/λ

Plugging in the given values:

ν = (3.00 × 10^8 m/s)/(141.8 × 10^-9 m)
ν = 2.12 × 10^15 Hz

Therefore, the frequency of the photon is 2.12 × 10^15 Hz, which corresponds to choice C.

What Is the Frequency of a Photon Having a Wavelength