A ray that strikes the surface separating the two optical media is called the incident ray. The angle which the incident ray makes with the... View Article
Retardation is nothing but a negative acceleration. The body’s velocity will either increase or decrease. The velocity shift is known as... View Article
The sound heard after reflections from a rigid surface such as a cliff or a wall are called echo creating a persistence of sound even after the... View Article
A constitution is defined as the set of written rules, that are accepted by all the people living together in a country. It determines the... View Article
AgNO3 solution An electrolyte is defined as the substance that produces an electrically conducting solution when it is dissolved in a polar... View Article
F1 x any parent Backcrossing is a crossing of a hybrid with one of its parents, or an adult genetically identical to the parent, to achieve... View Article
Relative Humidity 1. The amount of water vapour present in air can be expressed as a percentage of the amount needed for saturation at the same... View Article
A scalene triangle is a triangle that has all its sides unequal in length and all its angles unequal in measure. Learn more: Scalene Triangle... View Article
When the sum of two angles is 180°, then the angles are known as supplementary angles. Let us consider the angle x If supplementary of x is... View Article
T-Lymphocytes Cell-mediated immunity is facilitated by the T-helper and cytotoxic T-cells. Cytokines secreted by the T- helper cells activate... View Article
A lenticel is a porous tissue comprising cells with huge intercellular spaces. These can be found in the roots of dicotyledonous flowering... View Article
Picric acid is an organic compound. 2, 4, 6 - trinitrophenol is the IUPAC name of picric acid. It is an acid phenol and an explosive compound... View Article
Electromagnetic induction A cycle dynamo works on the principle of Faradays laws of electromagnetic induction. It is an electric motor in which... View Article
