Basic General Knowledge
To produce sound it is necessary that

the source should execute longitudinal vibrations
the vibrations of source are not necessary
the source should execute transverse vibrations
the source may execute any type of vibrations

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Basic General Knowledge
Mahakavi Kalidas

All of these
famous works include Shakuntala, Raghuvansha, Meghdoot and Kumara Sambahava
lived during the reign of Chandragupta Vikaramaditya
was one of the greatest Sanskrit poet and dramatist

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