ELEMENTS OF REMOTE SENSING QUIZ

The reflectance from a surface is called specular reflection if it follows:

Planktan

Lambert

All of these

Snell’s law

TRUE ANSWER : ?
YOUR ANSWER : ?

The entire range of the electromagnetic spectrum spans a large spectrum of wave lengths varying from:

10-8 to 108 m

10-8 to 106 m

10-10 to 106 m

10-10 to 1010 m

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following statements regarding remote sensing is correct?

Neither (A) nor (B)

The emission of electromagnetic radiation from the target

The interaction of the electromagnetic radiation with the target

Both (A) and (B)

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YOUR ANSWER : ?

Electromagnetic spectrum contains:

Ultraviolet rays (wave length < 10⁻⁶ m)

Infrared rays (wave length < 10⁻⁴ m)

Gamma rays (wave length < 10⁻¹⁰ m)

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

'A time varying electric field produces a magnetic field.' This phenomenon is called:

Hertz's law

Faraday's law

Ampere Maxwell's law

Kirchoff’s law

TRUE ANSWER : ?
YOUR ANSWER : ?

The ratio of the total solar radiant energy returned by a planetary body to the total radiant energy incident on the body, the called:

Reflectance factor

Albedo

Reflectance

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Coherence of two electromagnetic waves takes place if their phase difference is:

Constant in time and space

Constant in space

Constant in time

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

The basic requirement of any sensor system is:

Spectral resolution

All of these

Spatial resolution

Radiometric resolution

TRUE ANSWER : ?
YOUR ANSWER : ?

Crop Acreage and Production Estimation (CAPE) was funded and taken up in 1983 by:

European Union

Russia

India

USA

TRUE ANSWER : ?
YOUR ANSWER : ?

The infrared portion of EMR lies between

0.7 - 1.3 μm

0.7 to 14 μm

0.5 mm to 1 μm

0.4 - 0.7 μm

TRUE ANSWER : ?
YOUR ANSWER : ?

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