What does the term 'apparent resistivity' refer to?
A. True resistivity value
B. Average soil density
C. Measured resistivity influenced by heterogeneity
D. Depth to groundwater
Answer: Option C
Solution (By Examveda Team)
Apparent resistivity is a field-measured value affected by all layers beneath the electrodes and differs from true resistivity.This Question Belongs to Geological Engineering >> Geophysical Methods In Engineering
Which geophysical method uses electrical resistivity to study subsurface layers?
A. Seismic reflection
B. Electrical resistivity method
C. Gravity method
D. Magnetic method
What is the primary physical property measured in the seismic refraction method?
A. Electrical resistivity
B. Density
C. Seismic wave velocity
D. Magnetic susceptibility
The magnetic method in geophysics is used to detect:
A. Density contrasts
B. Magnetic anomalies
C. Water table depth
D. Pore pressure
Ground Penetrating Radar (GPR) is most effective in detecting:
A. Subsurface water
B. Magnetic minerals
C. Airborne pollutants
D. Earthquakes
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