Advertisements
Advertisements
Question
Why are traffic signals red in colour?
Short/Brief Note
Advertisements
Solution
- The wavelength of red colour is more than other colours.
- Red colour will travel long distance without scattering.
- Red colour gets least scattered and reaches people.
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Name two natural sources of light.
What do we call an electric bulb producing light?
What do we call a substance through which light passes? Give an example of such a substance.
Write the names of some cold light-emitting objects.
Write true or false
The stars have no light.
Answer the following.
List four natural sources of light.
Answer the following.
What is meant by luminous intensity? What is one lumen?
Sunlight is a blend of______ colors
The angle of deviation of light ray in a prism depends on the angle of ______.
A student observes a tree given in the following figure through a pin hole camera. Which of the diagrams given in the following figure (a) to (d), depicts the image seen by her correctly?
