Class 10 Exam > Class 10 Questions > Danger signals are red in colour becausea)red...
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Danger signals are red in colour because
- a)red colour is least scattered
- b)wavelength of red colour is less than that of other colour
- c)red colours is most scattered
- d)red colour looks attractive
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Danger signals are red in colour becausea)red colour is least scattere...
The correct answer is option 'A', which states that red color is least scattered.
The reason for red color being used for danger signals is that it is the color that is least scattered by air molecules, dust and other particles in the environment. This means that red signals are visible from farther away and are less likely to be obscured by atmospheric conditions. The wavelength of red color is longer than other colors and it is not necessary to be the least scattered because of that. And the attraction of red color is not the reason for it being used for danger signals.
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Danger signals are red in colour becausea)red colour is least scattere...
Explanation:
Danger Signals:
Danger signals are used to alert people about dangerous situations and to take necessary action. These signals are usually in the form of lights or sirens.
Colour of Danger Signals:
The colour of danger signals is usually red. Red colour is used because it is easily visible from a distance and also because it has a psychological effect on people. Red colour is associated with danger, warning, and alert.
Why is Red Colour used in Danger Signals?
Red colour is used in danger signals because of its properties. The reasons are as follows:
- Least scattered Colour: Red colour is the least scattered colour. When light passes through a medium, it is scattered in different directions. Red colour is scattered the least and hence it can be seen from a distance easily.
- Long Wavelength: The wavelength of red colour is longer than that of other colours. This means that red light can travel a longer distance without getting scattered.
- Psychological Effect: Red colour has a psychological effect on people. It is associated with danger, warning, and alert. When people see red colour, they become alert and take necessary action.
- Universal Recognition: Red colour is universally recognized as a danger signal. It is used in traffic signals, warning signs, and emergency lights.
Therefore, red colour is used in danger signals because of its properties and the psychological effect it has on people. It is easily visible from a distance and it alerts people to take necessary action.
Danger Signals:
Danger signals are used to alert people about dangerous situations and to take necessary action. These signals are usually in the form of lights or sirens.
Colour of Danger Signals:
The colour of danger signals is usually red. Red colour is used because it is easily visible from a distance and also because it has a psychological effect on people. Red colour is associated with danger, warning, and alert.
Why is Red Colour used in Danger Signals?
Red colour is used in danger signals because of its properties. The reasons are as follows:
- Least scattered Colour: Red colour is the least scattered colour. When light passes through a medium, it is scattered in different directions. Red colour is scattered the least and hence it can be seen from a distance easily.
- Long Wavelength: The wavelength of red colour is longer than that of other colours. This means that red light can travel a longer distance without getting scattered.
- Psychological Effect: Red colour has a psychological effect on people. It is associated with danger, warning, and alert. When people see red colour, they become alert and take necessary action.
- Universal Recognition: Red colour is universally recognized as a danger signal. It is used in traffic signals, warning signs, and emergency lights.
Therefore, red colour is used in danger signals because of its properties and the psychological effect it has on people. It is easily visible from a distance and it alerts people to take necessary action.
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Danger signals are red in colour becausea)red colour is least scatteredb)wavelength of red colour is less than that of other colourc)red colours is most scatteredd)red colour looks attractiveCorrect answer is option 'A'. Can you explain this answer?
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