Multiple choice general knowledge science & technology

which of the following is used to measure heartbeat

  1. sthethoscope

  2. barometer

  3. sphygmomanometer

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A stethoscope is the medical instrument used to listen to and measure the heartbeat and breathing. A barometer measures atmospheric pressure, and a sphygmomanometer measures blood pressure. The spelling in the option is slightly off ('sthethoscope'), but it is the correct instrument.

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