To produce sound it is necessary that
A. the source should execute longitudinal vibrations
B. the source should execute transverse vibrations
C. the source may execute any type of vibrations
D. the vibrations of source are not necessary
Answer: Option C
Solution(By Examveda Team)
To produce sound it is necessary that the source may execute any type of vibrations. Sound requires material medium for its propagation. It is produced when a body vibrates. The vibrations produced at a point are transmitted in the medium (air) from one point to the next and so on in the form of mechanical waves which produce compressions and rarefactions in air.Who amongst the following had called Rabindranath Tagore as THE GREAT SENTINEL?
A. Abul Kalam Azad
B. Mahatma Gandhi
C. Dr. Rajendra Prasad
D. Subhash Chandra Bose
Grand Central Terminal, Park Avenue, New York is the world's
A. highest railway station
B. longest railway station
C. largest railway station
D. None of the above
Entomology is the science that studies
A. The origin and history of technical and scientific terms
B. Behavior of human beings
C. Insects
D. The formation of rocks
E. None of these
Eritrea, which became the 182nd member of the UN in 1993, is in the continent of
A. Africa
B. Australia
C. Europe
D. Asia
E. None of these
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