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Ear probe which connects the patient to instrument is __________ m long.

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in Biomedical Instrumentation by (76.6k points)
Ear probe which connects the patient to instrument is __________ m long.

(a) 1.5

(b) 2.0

(c) 2.5

(d) 3.0

I got this question in a national level competition.

Question is from Digital Stethoscope in chapter Biomedical Recorders of Biomedical Instrumentation

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Right option is (c) 2.5

Easiest explanation: A 2.5 m long flexible fibre ear probe connects the patient to the instrument. The ear probe can be either held in position for discrete measurements or can be conveniently mounted to a headband for continuous display.

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