ELEMENTS OF REMOTE SENSING QUIZ

Which one of the following relationship between the wave length (λ), and frequency and the speed (C) of the electromagnetic wave is correct?

C = v + λ

C = λ/v

C = 1/λv

C = vλ

TRUE ANSWER : ?
YOUR ANSWER : ?

Pick up the important characteristic of a target which facilitates its identification from the following:

Spatial variation

Temporal variation

All of these

Spectral variation

TRUE ANSWER : ?
YOUR ANSWER : ?

‘A’ and ‘B’ are two towers of equal height diametrically opposite on either side of the nadir point, at 3 km and 5 km distances. Which one of the following statements is correct?

Height displacement of A will be less than that of B

Height displacement of A and B is equal

Height displacement of A and B will be towards each other

Height displacement of B will be less than that of A

TRUE ANSWER : ?
YOUR ANSWER : ?

If θ is the angle of scan measured from the nadir, the ground distance swept by the sensor IFOV is proportional to:

cos²θ

tan²θ

sec²θ

sin²θ

TRUE ANSWER : ?
YOUR ANSWER : ?

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

The emission of electromagnetic radiation from the target

Neither (A) nor (B)

The interaction of the electromagnetic radiation with the target

Both (A) and (B)

TRUE ANSWER : ?
YOUR ANSWER : ?

The various stages occuring in GPS system are described below: 1. Generation of an output to the user 2. Detection of the GPS signals 3. Processing the data in the built-in-computer 4. Decoding the GPS signal. The correct sequence of the stages is:

2, 3, 4, 1

2, 4, 3, 1

3, 1, 2, 4

1, 2, 3, 4

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following frequency regions is a part of sun's radiation?

Infrared frequency region

Ultraviolet frequency region

All of these

Radio frequency region

TRUE ANSWER : ?
YOUR ANSWER : ?

While propagating through homogeneous, isotropic media,

Directions of both the fields are orthogonal

Both the fields are at right angles to the direction of propagation

Neither (A) nor (B)

Both (A) and (B)

TRUE ANSWER : ?
YOUR ANSWER : ?

The object of photo-interpretation is:

Judging the significance of objects

All of these

Identification

Recognition of objects

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Russia

USA

European Union

India

TRUE ANSWER : ?
YOUR ANSWER : ?