Question

There are 4 wavelengths that are emitted from a hydrogen atom that can be seen by the human eye. Two of the wavelengths are the same color. what color are they?

a) red, blue, and violet
b) orange, yellow, and green
C) red, orange, and yellow
D) blue, indigo, and violet​

Answer 1

The correct answer is - a) red, blue and violet.

Step-by-step explanation:

In the visible spectrum, the hydrogen atom emits four different wavelengths that are visible to the human eye. The four wavelengths are these lines are 656 nm, 486 nm, 434 and 410 nm. Shorter wavelengths are not visible to human eyes fall in ultravoilet lights at less than 400 nm.

The H-α line is the red color wavelength at 656 nm, the blue color has two different wavelengths that are 486 nm sometimes called cyan, and 434 nm, and violet at 410 nm.