CURRENT AFFAIRS - JANUARY 2022 QUIZ

"An Electromagnetic wave falls on to a boundary between two losses less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media". This phenomenon is known as:

Fresnel reflection

Snell's law

None of these

Fresnel refraction

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Planktan

All of these

Snell’s law

Lambert

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following helps to identify the objects on the earth surface?

None of these

Signature

Radiometric error

Atmospheric window

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following quantities forms the basis of radiometry?

Radiant flux (φ)

Radiant intensity (I)

All of these

Radiant energy (Q)

TRUE ANSWER : ?
YOUR ANSWER : ?

The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is :

24

8

12

16

TRUE ANSWER : ?
YOUR ANSWER : ?

Formation of snow occurs if the cloud temperature is

Just above the freezing point

Below the freezing point

At the freezing point

None of these

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

None of these

Albedo

Reflectance

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following attributes is not associated with digital maps

Symbology

Legends

Color

South arrow

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following errors is produced by platform characteristics of the sensor?

Orbit drift

Altitude

Altitude variation

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

DGPS is based on the concept that bias errors in the position of locations in a given local area, are same if their distances are within

100 km

50 km

75 km

25 km

TRUE ANSWER : ?
YOUR ANSWER : ?

↑