RADAR is used for
A. Detecting and locating the position of objects such as Aeroplanes
B. Locating submerged submarines
C. Locating geostationary satellites
D. Receiving a signals in a radio receiver
Answer: Option A
Solution(By Examveda Team)
Radar, electromagnetic sensor used for detecting, locating, tracking, and recognizing objects of various kinds at considerable distances. It operates by transmitting electromagnetic energy toward objects, commonly referred to as targets, and observing the echoes returned from them.This Question Belongs to General Knowledge >> Physics
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C. Refractive index
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A. Collision between fast neutrons and nitrogen nuclei present in the atmosphere.
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B. Work done in lifting the stone is equal to rolling it.
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D. Work done in rolling a stone is less than in lifting it.
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A. Viscosity of ink
B. Capillary action phenomenon
C. Diffusion of ink through the blotting
D. Siphon action
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