Physics
Grade-10
Easy
Question
What would happen if the danger signal color were yellow?
- The color will not be visible from a large distance.
- The color will not be visible if there is rain.
- The color will not be visible if there is smog.
- All of the above
Hint:
Light of shorter wavelength would scatter more easily as compared to light of longer wavelength
The correct answer is: All of the above
When light of a shorter wavelength is used as a danger signal it wouldn't be of that much focus due to more scattering and when there will be rain or smog more particles would be present to scatter it and hence there will be less visibility.
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