Question

What frequency corresponds to an absorption line at 527 nm?
Answer choices in screen shot.

Answer 1

A.) 5.69 x 10¹⁴ Hz

Step-by-step explanation:

To find the wavelength, you need to use the following equation:

c = λf

In this equation,

-----> c = speed of light (2.998 x 10⁸ m/s)

-----> λ = wavelength (m)

-----> f = frequency (Hz)

Before you can use the equation, you need to convert the wavelength from nanometers (nm) to meters (m).

1 x 10⁹ nm = 1 m

527 nm 1 m
-------------- x -------------------- = 5.27 x 10⁻⁷ m
1 x 10⁹ nm

c = λf <----- Equation

2.998 x 10⁸ m/s = (5.27 x 10⁻⁷ m)f <----- Insert values

5.69 x 10¹⁴ = f <----- Divide both sides by 5.27 x 10⁻⁷