Basic General Knowledge
To produce sound it is necessary that

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

ANSWER DOWNLOAD EXAMIANS APP

Basic General Knowledge
The main objective of the Department of Atomic Energy is

to generate safe, economic electrical power from nuclear energy
None of these
to built research reactors and to utilize the radioisotopes
to encourage technology transfer and interaction with industry for industrial & social development

ANSWER DOWNLOAD EXAMIANS APP