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Question: Answered & Verified by Expert
On an average, a human heart is found to beat 72 times a minute. Its frequency and period are
PhysicsOscillationsCOMEDKCOMEDK 2014
Options:
  • A $1.2 \mathrm{~Hz}, 0.83 \mathrm{~s}$
  • B $2.5 \mathrm{~Hz}, 1.2 \mathrm{~s}$
  • C $2 \mathrm{~Hz}, 1.2 \mathrm{~s}$
  • D $2.5 \mathrm{~Hz}, 0.83 \mathrm{~s}$
Solution:
2788 Upvotes Verified Answer
The correct answer is: $1.2 \mathrm{~Hz}, 0.83 \mathrm{~s}$
Frequency of human heart,
$$
f=\frac{72}{60} \mathrm{~Hz}=\frac{6}{5} \mathrm{~Hz}=1.2 \mathrm{~Hz}
$$
Time period, $T=\frac{1}{f}=\frac{1}{1.2}=0.83 \mathrm{~s}$

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