Multiple choice

Altimeter is a modified

  1. thermometer

  2. barometer

  3. both (1) and (2)

  4. none of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An altimeter is a modified barometer that measures atmospheric pressure to determine altitude. As altitude increases, atmospheric pressure decreases, and the altimeter converts this pressure difference into height readings for aviation and mountaineering.