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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)
Balanced diet: We have dealt with quality and quantity of food. Both of these should be balanced in a diet. A balanced diet is a combination of various foods which can fulfil
what are the list of animals of nematoda
Another aneroid barometer Stretch a piece of thin rubber in excess of the mouth of a small glass jar. Wind thread or string over the rubber to secure it and then put a ring of
I dont understand anything. Please explain the whole lesson
Explain Relationship of Vitamins and Mineral with physiology They play a major role in the body's functioning. Vitamin A is necessary for night vision in the eyes. Vitamin B co
Precautions : The following precautions should be taken while using UV lamps: 1) TJV lamps must always be properly shielded. 2)Wear approved goggles when working with or clo
Determine about the Physico-chemical parameters The possible combination of various elements found in the earth's crust gives rise to a large number of minerals. Out of all the
FIRST AID PROCEDURE FOR UNCONSCIOUS CASUALTIES : Let us now discuss the first aid procedure for unconscious casualties. The common causes of unconsciousness in a laboratory accide
Describe the factors which decide the broad area of Scientific activity?
Experiments with man in space: We have already discussed the usefulness of space flights in Blocks 3&4. One is able to make astronomical observations from satellites; get met
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