Match List-I with List-II and select the correct answer using the options given below the lists:

List-I (Instruments) List-II (Measurement in which the instrument is used)

a. Lock-in amplifier 1. Patient monitoring

b. Sampling oscilloscope 2. Overcoming ground loop problem

c. Isolation amplifier 3. Phase difference between two signals

d. Strip-chart recorder 4. Signal recovery form noise

5. Observing very high frequency signals

A) a-1, b-3, c-5, d-4 B) a-2, b-1, c-3, d-4 C) a-4, b-5, c-2, d-1 D) a-3, b-4, c-1, d-2

Answer & Solution

Correct Answer: Option C

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List-I (Instruments)	List-II (Measurement in which the instrument is used)
a. Lock-in amplifier	1. Patient monitoring
b. Sampling oscilloscope	2. Overcoming ground loop problem
c. Isolation amplifier	3. Phase difference between two signals
d. Strip-chart recorder	4. Signal recovery form noise
	5. Observing very high frequency signals