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In electromagnetic (EM) sounding, the depth of investigation ___________ with increasing frequency. (-Gate Geology and Geophysics 2014)1 AnswerArrange the following electrode configurations in the ascending order of their depth of investigation. (-Gate geology and geophysics 2014)1 AnswerA confined sandy aquifer has a thickness of 10 m and transmissivity of 0.75 m2 per day. Its hydraulic conductivity is _____ m/day. (-Gate geology and geophysics 2014)1 AnswerMetal content (in metric tonnes) of an ore having specific gravity and assay values of 2.86 and 1.49 % respectively in a mining block 40 m long, 30 m wide and with an average thickness of 2.13 m is _______. (-Gate geology and geophysics 2014)1 AnswerThe correct sequence of metamorphic facies with increasing depth in a subduction zone is GATE-Geology and Geophysics-Question-20121 AnswerWhich one of the following transforms relates the real and imaginary components of harmonic electromagnetic (EM) field? (-Gate geology and geophysics 2014)1 AnswerThe S-wave velocity of a medium having a Poisson’s ratio and a P-wave velocity of 0.5 and 3 km/s respectively is _______km/s. (-Gate geology and geophysics 2014)1 AnswerWhich one of the following can be best explored using electromagnetic method? GATE-Geology and Geophysics-Question-20121 AnswerIdentify the CORRECT sequence of the electromagnetic waves in their increasing frequency -gate Geology & Geophysics 2017 1 Answer In frequency domain IP, which one of the following frequency ranges (in Hz) is used to measure apparent resistivity at DC and AC limits? -gate Geology & Geophysics 20172 AnswerCompute the coefficient of anisotropy from the following parameters estimated from a Vertical Electric Sounding (VES) survey. (-Gate geology and geophysics 2014)1 AnswerThe data of which one of the following active electromagnetic techniques can be used to correct static shift effect in magnetotelluric apparent resistivity data? -gate Geology & Geophysics 2017 1 AnswerDepth range of the ‘transition zone’ associated with phase changes in the Earth’s mantle is (in km) GATE-Geology and Geophysics-Question-20121 AnswerThe Bouguer anomaly obtained after applying all necessary corrections is due to -gate Geology & Geophysics 20173 Answer The frequency range (in Hz) that defines dead-band in magnetotelluric source signal is -gate Geology & Geophysics 2017 1 AnswerChoose the most appropriate word from the options given below to complete the following sentence. - Gate Geology and Geophysics 2014 (General Aptitude section)1 AnswerMatch the mineral deposits (listed in Group 1) with the most appropriate geophysical exploration methods (listed in Group 2): (-Gate Geology and Geophysics 2014)1 AnswerSelect the copper ore minerals from the following: (P) Chalcopyrite (Q) Pyrite (R) Pyrrhotite (S) Bornite (T) Sphalerite (U) Chalcocite (-Gate geology and geophysics 2014)1 AnswerThe reflection coefficient at the interface between two layers of resistivities 9 Ωm and 1 Ωm respectively is: (-Gate Geology and Geophysics 2014)1 AnswerThe convolution of two finite length sequences xn = [1, 0, -2] and yn = [1, -1] is: (-Gate geology and geophysics 2014)1 Answer