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Which one of the following transforms relates the real and imaginary components of harmonic electromagnetic (EM) field? (-Gate geology and geophysics 2014)1 AnswerIn general, geophysical inverse problems dealing with real data obtained from field measurements are: (-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 AnswerIn electromagnetic (EM) sounding, the depth of investigation ___________ with increasing frequency. (-Gate Geology and Geophysics 2014)1 AnswerThe pole-zero diagram of a causal and stable discrete-time system is shown in the figure. The zero at the origin has multiplicity 4. GATE EC 20151 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 AnswerGardner’s formula relates the seismic P-wave velocity (VP) to -gate Geology & Geophysics 20171 AnswerIn vector calculus, Stoke’s theorem relates: (-Gate geology and geophysics 2014)1 AnswerFor an electrostatic field, the Maxwell’s equations reduce to: (-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 AnswerThe deviation in the geographical locations of the magnetic poles from the geomagnetic poles of the Earth’s magnetic field is due to the -gate Geology & Geophysics 2017 1 AnswerTwo systems with impulse responses h1 (t) and h2 (t) are connected in cascade. Then the overall impulse response of the cascaded system is given by GATE-Instrumentational Engineering-20131 AnswerDrainage patterns observed in four areas are shown in black-and-white panchromatic images P, Q, R and S. Field work in these areas has indicated presence of the following lithology/geological unit. (-Gate geology and geophysics 2014)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 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 AnswerThe Fourier transform and integral of the Dirac delta function respectively are: (-Gate geology and geophysics 2014)1 Answer