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Geological Engineering · Q55

Geophysical Methods in Engineering

Engineering and GATE · Geological Engineering · question 55

Q55

What does the term 'apparent resistivity' refer to?

A.
True resistivity value
B.
Average soil density
C.
Measured resistivity influenced by heterogeneity
Answer
D.
Depth to groundwater

Answer: Option C

Solution

Answer: Option C
Solution:
Apparent resistivity is a field-measured value affected by all layers beneath the electrodes and differs from true resistivity.