Explain light source - pre-requisites of colour perception, Science

Assignment Help:

Explain Light source - Pre-requisites of Colour Perception  

No colour may be detected by the eyes or by an instrument in the dark i.e.  in the absence of a light source emitting radiant energy in the visible range of the spectrum. Wrong results will be obtained if the light source is not emitting sufficient radiant energy at the critical wavelength. To avoid this, three standard illuminants i.e. light sources have been established by the International Commission of Illumination.  These are:

Illuminant A  i.e.  Incandescent lamp (2844°K)

Illuminant B i.e. noon sunlight (4000°K)

Illuminant C i.e. cloudy daylight (6800°K)


Related Discussions:- Explain light source - pre-requisites of colour perception

Microscope, explain the parts of the microscope

explain the parts of the microscope

Define age related changes in blood, Define Age Related Changes in Blood ...

Define Age Related Changes in Blood Blood: Here the haemopoiesis (the formation of blood cells) slows down. Fatty marrows replace the heamopoietic (red) marrow. Thus, the proli

Hydra, compare and contrast the hydra to one of the protozoan observed in c...

compare and contrast the hydra to one of the protozoan observed in class

To show how soil is formed from rocks, To show how soil is formed from rock...

To show how soil is formed from rocks Carefully heat a piece of glass in a flame and then plunge it into cold water. The unexpected cooling of the glass causes it to contract u

Observing the phases of the moon, Observing the phases of the moon Over...

Observing the phases of the moon Over the time of a lunar month have the children make nightly observations and illustrate drawings of the moon. Start at new moon and continue

Define caecum - part of large intestine, Define Caecum - Part of Large Inte...

Define Caecum - Part of Large Intestine This is the first part of the colon. Ileocolic valve opens from the ileum on the medial aspect of the caecum. The vermiform appendix is

Explain the hyposecretion or hypothyroidism during infancy, Explain the Hyp...

Explain the Hyposecretion or Hypothyroidism during Infancy Decreased secretion of thyroid hormone results in the development of the condition known as cretinism. There is a lac

Laboratory method of soil textural classes, Laboratory Method of Soil textu...

Laboratory Method of Soil textural classes The mechanical analysis methods have been used by USDA to develop a method for naming the textural class. This is depicted by a trian

How we present atoms without drawing the subatomic particles, How do we rep...

How do we represent atoms without drawing all the subatomic particles? Atoms can be represented by their chemical symbols. For example, H is hydrogen, He is helium, etc. All t

Radiation hazards, RADIATION HAZARDS : We are sure that you would have st...

RADIATION HAZARDS : We are sure that you would have studied about electromagnetic radiation during your studies at the school. You would recall that in electromagnetic radiatio

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd