Question

. On her way to home, Manisha noticed that a red coloured danger sign has been put on a defective
poll. She wonders why the colour red has been used in the danger sign? ​

Answer 1

Answer:Among the three basic colours - red, yellow and blue - as well as other common colours such as green brown and orange the colour red is the one that was found to be most easily noticed by humans. This made it traditionally the most suitable colour for drawing attention of people. Therefore, the colour red has been used in preference over other colours, for many centuries in situations, including danger situations, where attention of people was to be drawn urgently and effectively. Over a period this practice of using colour red for drawing attention to thing and situations posing danger has made red a socially accepted symbol of danger around the world, further increasing is effectiveness as a symbol of danger

Explanation:

Answer 2

Answer:

red colour is least scattered among all colours and hence it is clearly visible

Explanation:

it has largest wavelength and hence does not travel long distances and does not get scattered

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