What is the reason for formation of Mirage in desert?
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The force of friction between two surfaces will increase if:
The given symbol stands for a/an ___ in an electric circuit.
The absolute refractive index of air is
A deep crack in a glacier is called
Study of earth is known as
____________ scheme by the Central Government states that an insurance of 10 lakhs will cover each passenger traveling by Indian Rail while booking a ticket if an amount of 92paise is paid.
Which country built the Bird's Nest Stadium for 2008 Summer Olympics?