Question
A soap bubble shows colours when illuminated with white
light. This is due to –Solution
The iridescent colours of soap bubbles are caused by interfering of (internally and externally) reflected light waves and are determined by the thickness of the film. This phenomenon is not the same as the origin of rainbow colours (caused by the refraction of internally reflected light), but rather are the same as the phenomenon causing the colours in an oil slick on a wet road.
Hedging is the main feature of:
Under which climatic conditions do the laeterite soils develop
Safe moisture content for storage of cereal grains is
The head office of FSSAI is situated in:
Fortification is the addition of key vitamins and minerals such as Iron, Iodine, Zinc, Vitamins, oils can be fortified with which of the following vitamin
Total soluble solids are measured by:
Strip cup is a simple and effective method of detecting mastitis early. It is used_____
Total number of agro - climatic zones of Tamil Nadu is
Ideally, the crop is harvested when 90 percent grains are matured; delay may promote grain:
Breeding bulls in service  should get __ Kg./day extra concentrate.Â
Relevant for Exams:
