General Knowledge - Basic General Knowledge

79. 

Missile 'prithivi' aims

A. to test the performance of an indigenously built heat-shield
B. to hit target without the help of the Air Forces
C. to defend a large installations like oil-fields etc. against enemy attacks
D. None of the above

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

80. 

Microphone is used to convert

A. sound waves into electrical energy
B. sound waves into light rays
C. electrical energy into sound waves
D. sound waves into magnetic currents

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

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