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 image but reduces the sharpness
C. Increases both the contrast and sharpness
D. Reduces the contrast but increases the sharpness

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 rocks
D. 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 antenna
B. 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. Legends
D. South arrow

In GPS, receivers used are___________________?

A. Electronic clocks
B. Atomic clocks
C. Quartz clocks
D. Mechanical clocks

For C band Synthetic Aperture Radar (SAR) with Doppler band width of 1300 Hz, the coherence length loch is_____________?

A. 130 km
B. 230 km
C. 250 km
D. 500 km

Which on speed C. of the electromagnetic wave is correct ?

A. C = v
B. C = /v
C. C = v
D. C = 1/

Which one of the following frequency regions is a part of sun’s radiation ?

A. Ultraviolet frequency region
B. Infrared frequency region
C. Radio frequency region
D. All of these

Which one of the following geometric errors of satellite sensors is random ?

A. Scan skew
B. Panoramic distortion
C. Earth rotation
D. Altitude variation