Question

A scientist prepares a colloidal solution and pours it into a glass tank. She then flashes a beam of white light into one end of the tank. From the opposite end of the tank, the exiting light appears reddish. What can be concluded from this experiment?
A) Light that scattered in the tank is independent of the frequency of light.
Eliminate
B) The lower frequencies of visible light were scattered by the colloid particles.
C) The higher frequencies of visible light were scattered by the colloid particles.
D) Light that scattered in the tank is independent of the size of colloid particles.

Answer 1

Answer:

C)

Explanation:

The visible light spectrum refers to the portion of the electromagnetic radiation spectrum that humans can see. In this spectrum, higher frequencies are bluish while lower frequencies are reddish.

The beam of white light contains all frequencies of the visible light spectrum, and from the experiment we see that only the lower frequencies got through the colloidal solution. This means that the higher frequencies must have been scattered by the colloid particles.

Answer 2

The answer is C) The higher frequencies of visible light were scattered by the colloid particles.