The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called________________?

The instruments which provide electromagnetic radiation of specified w

1.	The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called________________?
A.	Sensors
B.	Passive sensors
C.	Active sensors
D.	None of these
Answer» D. None of these

Discussion

No Comment Found

Related MCQs

The information system is the chain of the following operations, 1. Collection of data2. Planning the observations3. Analysis of data4. Decision making process Which one of the chains is correct ?
The main functional blocks of a mul-tispectral scanner (MSS) are given below :1. Video processor2. Dispersive system3. Detector4. Signal conditioner5. Collecting opticsWhich one of the following sequences is correct?
Assuming as the frequency of radiation, as the threshold frequency and as a constant, the energy of the photo-electrons () is related as
If electric permittivity and magnetic permeability of the medium are respectively ε and μ, then the velocity () of the electromagnetic wave in the medium is given by :
Consider the following statements regarding the satellite imaging :1. The satellite orbit is fixed in the inertial space2. During successive across-track imaging, the earth rotates beneath the sensor3. The satellite images a skewed area Which one of the following statements is/are correct ?
For band Synthetic Aperture Radar (SAR) with Doppler band width of 1300 Hz, the coherence length lcoh is:
The various stages of formation of snow are listed below :1. Formation of ice crystals2. Formation of snow pallets3. Formation of snow flakes4. Formationof snow crystals5. Formation of rimed crystalsWhich one of the following sequences is correct ?
According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index ) on an other medium (refractive index );
Which one of the following relationship between the wave length (λ), and frequency and the speed () of the electromagnetic wave is correct ?
The various stages occuring in GPS system are described below :1. Generation of an output to the user2. Detection of the GPS signal3. Processing the data in the built-in-computer4. Decoding the GPS signal.The correct sequence of the stages is :

The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called________________?

Discussion

No Comment Found

Related MCQs

Reply to Comment