List of top Geophysics Questions on Electromagnetic Methods asked in GATE GG

The wavelength of a certain portion of the electromagnetic spectrum ranges from 2000 nm to 3000 nm. The highest frequency associated with the above portion of the spectrum is____________\(\times10^{8}\) MHz (rounded off to one decimal place).

What is the value of magnetotelluric impedance phase over a homogeneous half-space?

If the depth of penetration of an inducing electromagnetic wave of 1 kHz frequency is 400 m, then the resistivity of the subsurface is __________ \(\Omega\)m (answer in integer).

In regions of lateral conductivity contrasts, the time-independent separation between the subsurface apparent resistivity curves of transverse electric (TE) and transverse magnetic (TM) modes relative to each other arises mainly due to

Which of the following assumptions is/are valid for electromagnetic induction to happen in the Earth?

In Electromagnetic methods of prospecting, which one of the given options is CORRECT about frequency and type of current source for the Primary field used?