The bright light emission spectrums below are seen through a spectroscope. The unknown sample is a mixture of the observed gases

Which gases are found in the unknown sample?

gases Wand Z

gases Z and Y.

Explanation:

Photons are emitted when electrons jump from a higher energy level to lower energy level and these photons carry light energy.

The light emitted at various wavelengths produce emission spectrum, when viewed via a spectroscope.

While analyzing the image, we could see that the spectrum of unknown sample contains the gases Z and Y.

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.