Critical angle of electromagnetic radiation takes place if Angle of incidence is equal to 90° Angle of refraction is equal to 90° Angle of incidence is greater than the angle of refraction Angle of incidence is equal to angle of refraction TRUE ANSWER : ? YOUR ANSWER : ?
The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target, Increases the contrast of the image but reduces the sharpness Reduces the contrast of the image and also its sharpness Reduces the contrast but increases the sharpness Increases both the contrast and sharpness TRUE ANSWER : ? YOUR ANSWER : ?
Pick up the correct definition from the following with response to GIS. The area features which are wholly contained within another area feature, is known so containment All of these Common boundary between two areas of a locality is known as adjacency The geometric property which describes the linkage between line features is defined as connectivity TRUE ANSWER : ? YOUR ANSWER : ?
Which one of the following statements is correct regarding the GPS satellites? The nominal altitude is about 20,200 km The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz) The inclination of axis satellite is 55° All of these TRUE ANSWER : ? YOUR ANSWER : ?
"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". This phenomenon is known as: Fresnel reflection Snell's law Fresnel refraction None of these TRUE ANSWER : ? YOUR ANSWER : ?
The various stages occuring in GPS system are described below: 1. Generation of an output to the user 2. Detection of the GPS signals 3. Processing the data in the built-in-computer 4. Decoding the GPS signal.The correct sequence of the stages is: 3, 1, 2, 4 2, 3, 4, 1 1, 2, 3, 4 2, 4, 3, 1 TRUE ANSWER : ? YOUR ANSWER : ?
Formation of snow occurs if the cloud temperature is Below the freezing point None of these Just above the freezing point At the freezing point TRUE ANSWER : ? YOUR ANSWER : ?
The maximum sun's radiation occurs around: 0.4 μm wave length 0.7 μ wave length 0.55 μ wave length None of these TRUE ANSWER : ? YOUR ANSWER : ?
Which one of the following parameters is considered to determine the reflectance of a vegetation canopy? Solar zenith angle Look angle All of these Azimuth angle TRUE ANSWER : ? YOUR ANSWER : ?