List of practice Questions

Gopal remembers that Rajesh’s birthday is after the 4th of December but before the 7th of December. Rajesh’s sister says his birthday is two days before or after hers (8th December). When is Rajesh’s birthday?

Choose the word that, when inserted in the sentence, best completes the sentence. Sam has memorized the most ------ details about dinosaurs and seems to have an
inexhaustible knowledge about the most arcane details concerning these
prehistoric animals.

Atul agreed .................... my suggestion.

Most people are afraid .................... ghosts.

The amplitude of a monochromatic 1000 Hz EM wave reduces by a factor of \(1/e\) after penetrating to a depth of 100 m in a homogeneous medium. Given the magnetic permeability of free space \(\mu_0 = 4\pi \times 10^{-7}\,\text{H/m}\), the electrical conductivity of the medium in S/m is _________ (rounded off to three decimal places).

A stacked seismic section shows a single dipping event with a slope of \(0.5\ \text{s/km}\). Stolt migration with a constant velocity of \(2\ \text{km/s}\) is applied to the data. The dip of the event in the migrated section in degrees is __________ (rounded off to one decimal place).

The figure shows a homogeneous rock layer of thickness \(100\ \text{m}\). A vertical borehole is drilled through the layer and gravity is measured at the top point \(A\) and at the base point \(B\). If the difference in measurements between \(A\) and \(B\) is \(5\ \text{mGal}\), find the density \(\rho\) of the rock layer in g/cc (ignore terrain corrections).