Question

An artist who likes working with sources of light decides to make a modern sculpture out of electrified glass tubes that contain very thin (rarified) neon gas. When the sculpture is finished, and the electricity is turned on, the tubes glow with a rich red color. What we are seeing is ___?

Answer 1

The correct answer is- emission spectrum

Step-by-step explanation:

When energy is absorbed by an atom or molecule the electron in the atom jumps into a higher energy state and when it slowly releases energy it occupies multiple energy states this shows that an electron can have multiple transitions which leads to many wavelengths that form emission spectrum.

So the range of wavelength produced or emitted by an atom which is stimulated by energy(heat or electric current) is called an emission spectrum. So here electricity is used to excite the electron present in the gas tube containing neon and when electrons emit energy it shows red color. So the correct answer is the emission spectrum.