Category: Elements of Remote Sensing

A. Frequency is the number of wave crests passing a fixed point in one second
B. Frequency of a wave is measured in Hertz (Hz)
C. Amplitude of a wave is the height of its crust from the mid-point
D. All of these

A. Gamma rays (wave length < 10-10 m)
B. Ultraviolet rays (wave length < 10-6 m)
C. Infrared rays (wave length < 10 -4 m)
D. All of these

A. The nominal altitude is about 20,200 km
B. The inclination of axis satellite is 55°
C. The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz)
D. All of these

A. Visible (0.4 –
B. Near-IR (0.7 –
C. Short wave-IR (1.3 –
D. None of these

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

A. 16,200 km
B. 20,200 km
C. 24,400 km
D. 36,100 km

A. The angle of incidence is equal to the angle of refraction
B. The angle of refraction r) is given by sin i
C. Both A. and B.
D. Neither A. nor B.

A. The first man-made satellite, Sputnik-l’ was launched on 4th October, 1957
B. The United State’s Explorer 6 transmitted the first picture of the earth in August 1959
C. Television Infrared Observation Satellite (TIROS) designed for meteorological observations, started systematic earth observations from space from 1, April, 1960
D. All of these

A. Radiometric resolution
B. Spatial resolution
C. Spectral resolution
D. All of these

A. Six ground stations
B. Five ground stations
C. Four ground stations
D. Three ground stations