
Colours of rainbow are in VIBGYOR sequence:
A.) True
B.) False
Answer
526.2k+ views
Hint: The observable region in the electromagnetic spectrum is called visible light. There are different categories of colours in visible light like red, orange, yellow, green, blue, indigo and violet. Rainbows appear in seven colours after dispersion of white light in its constituent colours.
Complete step by step answer:
The colour sensation can be determined by the light spectrum which arrives at the human eye. The human eye detects the colour in the range of wavelengths from 400nm to 700nm which is called a visible spectrum of visible light. There are different colours of light that correspond with narrow wavelength bands. These are clean spectral colours namely VIBGYOR.
The abbreviation of VIBGYOR is red, orange, yellow, green, blue, indigo, and violet. The white light is a combination of various colours where every colour can be connected with a particular wavelength of light.
Sunlight can be understood as visible or white light and it is the combination of all visible colours. Rainbows have seven colours because water droplets work like a prism and split white sunlight into the seven colours of the spectrum (red, orange, yellow, green, blue, indigo, violet).
Hence, the correct option is A, i.e., True.
Additional Information:
Electromagnetic radiation is often described through its frequency and wavelength. As the wavelength is within the visible region then it is called visible light. Most of the sunshine sources produce light at different wavelengths. The spectrum of the sunshine source has each wavelength.
Note: Students should understand the phenomenon of dispersion of white light in its constituent colours. Thereafter they need to know the order of wavelength or frequency of different constituent colours so that they can arrange these colours in the proper order.
Complete step by step answer:
The colour sensation can be determined by the light spectrum which arrives at the human eye. The human eye detects the colour in the range of wavelengths from 400nm to 700nm which is called a visible spectrum of visible light. There are different colours of light that correspond with narrow wavelength bands. These are clean spectral colours namely VIBGYOR.
The abbreviation of VIBGYOR is red, orange, yellow, green, blue, indigo, and violet. The white light is a combination of various colours where every colour can be connected with a particular wavelength of light.
Sunlight can be understood as visible or white light and it is the combination of all visible colours. Rainbows have seven colours because water droplets work like a prism and split white sunlight into the seven colours of the spectrum (red, orange, yellow, green, blue, indigo, violet).
Hence, the correct option is A, i.e., True.
Additional Information:
Electromagnetic radiation is often described through its frequency and wavelength. As the wavelength is within the visible region then it is called visible light. Most of the sunshine sources produce light at different wavelengths. The spectrum of the sunshine source has each wavelength.
Note: Students should understand the phenomenon of dispersion of white light in its constituent colours. Thereafter they need to know the order of wavelength or frequency of different constituent colours so that they can arrange these colours in the proper order.
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