Consider the following Activities: 1. Identification of narcotics on passengers at airports or in aircraft 2. Monitoring of precipitation 3. Tracking the migration of animals In how many of the above activities can the radars be used?

Options

1. (a) Only one
2. (b) Only two
3. (c) All three
4. (d) None

Correct Answer

(b) Only two

Explanation

Radars can be used for monitoring precipitation and tracking animal migration through Doppler and weather radar technologies, but narcotic detection uses spectroscopic and X-ray technologies, not radar.

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