Home PYQs UPPSC UPPSC MCQs Prelims 2008 (GS Paper I)

Question

Radar is used mainly for:

  1. detecting objects by using light waves
  2. reflecting sound waves to detect objects
  3. determining the presence and location of objects with radio waves
  4. tracking rain bearing clouds

Answer:

Option C: determining the presence and location of objects with radio waves

Detailed Solution:

The correct answer is “determining the presence and location of objects with radio waves”.

Radar, or Radio Detection and Ranging, is used to determine the presence and location of objects using radio waves. It can also determine the range, angle, and velocity of objects.