• Venkatesh Bharadwaj Former Professor, Soil Science and Head, Agrometeorology Department, G.B.Pant University of Agriculture and Technology, Pantnagar, 263145, U.S.Nagar (Uttarakhand), India.



Colour, Perception, Temperature

Abstract [English]

Colour is visual identification or perception of a property derived from spectrum of light by human eyes. When a beam of light from sun or light source passes through a glass prism, it dispersed in to seven colours of rainbow. Sunlight has a high color temperature, a fairly uniform spectrum and is considered a standard for white light.
A rainbow is an optical and meteorological phenomenon caused by reflection and refraction of light in water droplets present in the atmosphere. The rainbow colours are violet, indigo, blue, green, yellow, orange and red (vibgyor). Electromagnetic radiation in the visible range is generally called as light.


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Bharadwaj, Venkatesh - Fundamentals of Soil Science, Laboratory Manual, Pantnagar, 1999.

Bharadwaj, Venkatesh- Practical Manual: Salt Affected and other problem soils. Pantnagar, 2002.

Bharadwaj, Venkatesh- Climatic change and management of weather for sustainable agriculture.2009 (Agrotech Publishing Academy,Udaipur)

Bharadwaj, Venkatesh- Emission of Green Houses Gases from Agriculture Sector and measures for their Mitigation 2009 (Agrotech Publishing Academy,Udaipur )




How to Cite

Bharadwaj, V. (2014). COLOURS: A SCIENTIFIC APPROACH. International Journal of Research -GRANTHAALAYAH, 2(3SE), 1–6.