“An Electromagnetic wave falls on to a boundary between two losses less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media”.…

Who coined the term, ‘Remote sensing_______________? A. Evelyn L. Pruitt, a geographer B. Gaspard Felix Tournachon, a French scientist C. Wilbur Wright, an Italian scientist D. None of these

A passive sensor uses ________________? A. Sun as the source of energy B. Flash light as a source of energ C. Its own source of energy D. None of these

The basic requirement of any sensor system is___________________? A. Radiometric resolution B. Spatial resolution C. Spectral resolutionD. All of these

The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target_________________? A. Reduces the contrast of the image and also its sharpness B. Increases the contrast of the…

Spatial variation in horizontal and vertical directions is caused due to_________________? A. Physical weathering of rocks B. Chemical weathering of rocks C. Biological weathering of rocksD. All of these

If electric permittivity and magnetic permeability of the medium are respectively and , then the velocity (Cm) of the electromagnetic wave in the medium is given by___________________? A. Cm = 1/B. Cm C. Cm D. None of these

The most widely used antenna in GPS is_______________? A. Parabolic antennaB. Microstrip antenna C. Horn antenna D. Slotted antenna

Which one of the following attributes is not associated with digital maps_______________? A. Colour B. Symbology C. LegendsD. South arrow

In GPS, receivers used are___________________? A. Electronic clocks B. Atomic clocksC. Quartz clocks D. Mechanical clocks