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MST RADAR is used for :

  • A.Measuring speed of automobiles
  • B.Mapping the ground
  • C.Searching surface non uniformities
  • D.Finding attitude of cloud base

Answer: D

The keyed use is finding the altitude of cloud base (printed 'attitude').

An MST radar (Mesosphere-Stratosphere-Troposphere radar), such as the one at the National Atmospheric Research Laboratory at Gadanki in Andhra Pradesh, is a VHF radar that points upward and receives echoes from turbulence and refractive-index variations in the atmosphere. It is used to study winds, turbulence and the structure of the atmosphere at different heights, including the layers associated with clouds.

Measuring the speed of vehicles is done by Doppler speed radar, mapping the ground by synthetic aperture radar, and searching surfaces by ground-penetrating or inspection radars, none of which is an MST radar.

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