The two cars illuminated by sodium lamps appear black because the red and black colours are absorbed and no colour is reflected.
<h3>What is reflection of light?</h3>
Reflection of light is the ability of light rays to bounce back off a surface when they are incident on that surface
The ability of light to be reflected gives rise to changes in the colour of objects
When light is incident on a surface, the colour that is reflected gives the colour of that object.
Therefore, when two cars of red and black colur are illuminated by sodium lamps, they appear black because the red and black colours are absorbed and no colour is reflected.
Learn more about reflection of light at: brainly.com/question/1191238
The wave property is called frequency
Answer: Reduction in skin resistance as a result of increased perspiration leading to conduction.
Explanation:
A lie detector is a machine used to detect when someone is lying.
This is so because when an individual lies, there is an increase in heart beat which causes an increase in sweating. As the the individual sweats there is a reduction in the resistance at skin surface leading to current conduction across the connected cables.
