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Q.

The normal duration of a cardiac cycle is about

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a

0.6 seconds

b

0.8 seconds

c

1.0 seconds

d

1.2 seconds

answer is B.

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Detailed Solution

The heart beats 72 times per minute, i.e., that many cardiac cycles are performed per minute. From this it could be deduced that the duration of a cardiac cycle is about 0.8 seconds.

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