Question

A human heart on an average is found to beat 75 times a minute calculate it's frequency

Answer 1

Frequency will be 1.25.

To get the period between heartbeats, 1 minute or 60 seconds must be divided by the number of beats per minute. For example, if the heart beats 75 times per minute, we divide 60 second by 75.

Answer 2

To calculate frequency in hertz (Hz) we need to calculate time in seconds.

t = 1 minute = 60 seconds   ; No. of beats = 75

Frequency = No. of beats * Total time

                  = 75 * 60

                  = 1.25 Hz

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