Lie detector is an instrument used fora)Measuring body temperature.b)Measuring pulse rate.c)Recording impulses due to change in certain body activities.d)None of the above.Correct answer is option 'C'. Can you explain this answer?

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Lie detector is an instrument used for

a)
Measuring body temperature.
b)
Measuring pulse rate.
c)
Recording impulses due to change in certain body activities.
d)
None of the above.

Correct answer is option 'C'. Can you explain this answer?

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Lie detector is an instrument used fora)Measuring body temperature.b)M...

A polygraph, popularly referred to as a lie detector test, is a device or procedure that measures and records several physiological indicators such as blood pressure, pulse, respiration, and skin conductivity while a person is asked and answers a series of questions.

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Lie detector is an instrument used fora)Measuring body temperature.b)Measuring pulse rate.c)Recording impulses due to change in certain body activities.d)None of the above.Correct answer is option 'C'. Can you explain this answer?

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