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Electric decomposition
Ionization
Photoelectric effect
None of the above
The phenomenon which causes mirage is
The photoelectric effect is described as the ejection of electrons from the surface of a metal when -
The plastic material commonly used for making gear wheels is
The polymerisation of Which among the given is used in manufacturing of polythene in industry -
The presence of Cobalt in Vitamin B12 was established for the 1st time by
The presence of ozone in the stratosphere is responsible for
The principle involved in the absorption of water by soil is
The principle of black hole was enunciated
The process by which milk is converted to curd is called
The process of depositing of a Layer of Zinc over water pipes for being protected from rusting is known as