Elements Of Remote Sensing The changes in the reflectivity/emissivity with time, is called: None of these Spatial variation Spectral variation Temporal variation None of these Spatial variation Spectral variation Temporal variation ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing If electric permittivity and magnetic permeability of the medium are respectively ‘ε’ and ‘μ’, then the velocity (Cm) of the electromagnetic wave in the medium is given by: Cm = 1/εμ Cm = 1/√8 μ None of these Cm = 5/√εμ Cm = 1/εμ Cm = 1/√8 μ None of these Cm = 5/√εμ ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target, Reduces the contrast of the image and also its sharpness Increases the contrast of the image but reduces the sharpness Reduces the contrast but increases the sharpness Increases both the contrast and sharpness Reduces the contrast of the image and also its sharpness Increases the contrast of the image but reduces the sharpness Reduces the contrast but increases the sharpness Increases both the contrast and sharpness ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Remote sensing techniques make use of the properties of ___________ emitted, reflected or diffracted by the sensed objects: Electromagnetic waves Electric waves Sound waves Wind waves Electromagnetic waves Electric waves Sound waves Wind waves ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called: Spatial variation None of these Spectral variation Temporal variation Spatial variation None of these Spectral variation Temporal variation ANSWER DOWNLOAD EXAMIANS APP
Elements Of Remote Sensing Which one of the following statement is incorrect regarding the electromagnetic radiation? The changing electric fields induce the changing magnetic fields in the surrounding medium The oscillation of charged particles sets up changing electric fields These are produced by the motion of electric charge None of these The changing electric fields induce the changing magnetic fields in the surrounding medium The oscillation of charged particles sets up changing electric fields These are produced by the motion of electric charge None of these ANSWER DOWNLOAD EXAMIANS APP
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