Elements Of Remote Sensing MCQ Questions & Answers | Civil Engineering

A. These are produced by the motion of electric charge

B. The oscillation of charged particles sets up changing electric fields

C. The changing electric fields induce the changing magnetic fields in the surrounding medium

D. None of these

A. Crest A is $$\frac{\pi }{2}$$

B. B crossing is $$\pi $$

C. Trough C is $$\frac{{3\pi }}{2}$$

D. All of these

A. Atmospheric window

B. Signature

C. Radiometric error

D. None of these

A. Passive remote sensing

B. Active remote sensing

C. Neutral remote sensing

D. None of these

A. 0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 μm

B. 2.2 to 2.6, 3.0 to 3.6, 4.2 to 5.0 μm

C. 4.2 to 5.0, 7.0 to 15.0 μm and 1 cm to 30 cm

D. All of these

A. 15,200 km

B. 26,600 km

C. 18,400 km

D. 36,000 km

A. Physical weathering of rocks

B. Chemical weathering of rocks

C. Biological weathering of rocks

D. All of these

A. Radiant energy (Q)

B. Radiant flux (φ)

C. Radiant intensity (I)

D. All of these

A. Spectral variation

B. Spatial variation

C. Temporal variation

D. None of these

A. During the day, earth reflects solar radiation

B. During the day, earth reflects both solar radiations the emission from its surface

C. During the night, earth emits radiation from its surface

D. All of these