A. Radiant energy (Q)
B. Radiant flux (Φe )
C. Radiant intensity (I)
D. All of these
Related Mcqs:
- Pick up the correct statement from the following ?
A. A graphical representation of spectral reflectance verses the various growth stages of a crop, depicts a phonologic pattern
B. The changes in the polarisation of the radiation reflected or emitted by an object, is known as polarisation variation
C. The degree of polarisation is a characteristic of the object which helps in the identification of the object
D. All of these - Which one the following is a correct statement ?
A. The vertical section of the soil extending into the parent material, is called profile
B. The layers of the soil parallel to the earth surface are called horizons
C. The transitional layer between two adjoining horizons is called boundary
D. All of these - Pick up the correct statement from the following?
A. The minimum frequency of light for which no electrons are emitted, is called threshold frequency
B. Polarising angle of glass is 57.5°
C. At the polarising angle, the reflected and refracted rays are orthogonal
D. All the above - Pick up the correct statement from the following?
A. Frequency is the number of wave crests passing a fixed point in one second
B. Frequency of a wave is measured in Hertz (Hz)
C. Amplitude of a wave is the height of its crust from the mid-point
D. All of these - Which one of the following statement is correct ?
A. Radiant energy expressed in Joules, is the energy associated with electromagnetic radiation
B. The rate of transfer of radiant energy is called flux and is expressed in watts
C. The radiant energy which falls upon a surface is termed as irradiance
D. All of these - Consider the following statements regarding the satellite imaging_________________?
1. The satellite orbit is fixed in the inertial space
2. During successive across-track imaging, the earth rotates beneath the sensor
3. The satellite images a skewed area
Which one of the following statements is/are correct?A. 1, 2, 3
B. 1, 3
C. 2, 3
D. 1, 2 - Pick up the important characteristic of a target which facilitates its identification from the following ?
A. Spectral variation
B. Spatial variation
C. Temporal variation
D. All of these - Pick up the correct statement from the following?
A. The ratio of the up flux and down flux just above the snow surface, is called albedo
B. Spectral albedo of snow is calculated for the semi-infinite snow thickness
C. Water equivalent height of snow is the height of water column obtained by melting snow
D. All of these - Which one of the following statements is correct ?
A. During the day, earth reflects solar radiation
B. During the day, earth reflects both solar radiations the emission from its surface
C. During the night, earth emits radiation from its surface
D. All of these - Pick up the correct statement from the following?
A. Phytoplankton contains photosynthetically active pigment
B. An increase of phytoplankton increases the back scattering in the green region
C. An increase of phytoplankton absorbs the bule region rapidly
D. An increase of phytoplankton decreases the back scattering in the green region
