Related Questions

The latitude which passes through Sikkim also passes through
A Haryana
B Rajasthan
C Uttarakhand
D Himachal Pradesh
The incoming short-wave solar radiation is balanced by an equal amount of long-wave radiation from earth going back to space. This is known as ________
A Earth radiation
B Wave balance of earth
C Heat balance of earth
D Radiation exchange
Which one of the following statement is incorrect regarding the electromagnetic radiation?
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
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
Which electromagnetic radiation is used for satellite communication ?
A Ultraviolet
B Infrared
C Radiowave
D Millimeter wave
In case of reflection and refraction of electromagnetic radiation,
A Angle of incidence = angle of refraction
B Angle of incidence = angle of reflection
C Angle of refraction = sum of the angles of incidence and refraction
D All the above
Electromagnetic radiation:
A Produces a time varying magnetic field and vice versa
B Once generated, remains self-propagating
C Is capable to travel across space
D All of these
The interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target on the terrain for studying its scattered radiance, is called:
A Passive remote sensing
B Active remote sensing
C Neutral remote sensing
D None of these
Critical angle of electromagnetic radiation takes place if
A Angle of incidence is equal to angle of refraction
B Angle of incidence is greater than the angle of refraction
C Angle of incidence is equal to 90°
D Angle of refraction is equal to 90°
The range of electromagnetic spectrum important in heat transfer by radiation is __________ microns.
A 0.38-0.78
B 0.5-50
C 100-1000
D 5-50

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