CONS 127 EXAM WITH VERIFIED QUESTIONS
AND ANSWERS|| GUARANTEED PASS||
ALREADY GRADED A+|| LATEST UPDATE 2026
How do radio waves function in communication systems? - ANSWER-Radio
waves are used in communication systems like radio broadcasting and walkie-
talkies to transmit sound.
What is the impact of atmospheric conditions on microwave transmission? -
ANSWER-Microwaves can penetrate most atmospheric conditions, making
them reliable for communication and navigation.
What type of infrared energy is emitted from thermal cameras? - ANSWER-
Far-Infrared
What does thermal infrared energy measure? - ANSWER-Surface temperature
What is the wavelength range of visible light? - ANSWER-0.38 - 0.7 μm
Which color of visible light has the shortest wavelength? - ANSWER-Violet
(around 380 nanometers)
Which color of visible light has the longest wavelength? - ANSWER-Red
(around 700 nanometers)
,What is the wavelength range of ultraviolet (UV) light? - ANSWER-10 - 380
nm
What happens to most UV light when it reaches the Earth's atmosphere? -
ANSWER-It is mostly blocked.
What is the wavelength range of X-rays? - ANSWER-0.01 - 10 nm
What is the wavelength range of gamma rays? - ANSWER-< 0.01 nm
What are the three possible interactions of electromagnetic radiation with the
Earth's surface? - ANSWER-Absorption, reflection, and transmission.
What is transmittance in the context of surface interactions? - ANSWER-The
fraction of radiation that penetrates into certain surface materials.
What is reflectance? - ANSWER-The portion of radiation that reflects and
scatters away from the target.
What are the three ways electromagnetic radiation interacts with Earth's
surface? - ANSWER-Electromagnetic radiation can be absorbed, reflected, or
transmitted.
What is the significance of chlorophyll in leaf reflectance? - ANSWER-
Chlorophyll pigments in the palisade parenchyma cells significantly impact the
absorption and reflectance of visible light.
What does a high NDVI value indicate? - ANSWER-Values closer to 1
represent healthier vegetation.
What wavelengths show significant water absorption bands? - ANSWER-0.97
μm, 1.19 μm, 1.45 μm, 1.94 μm, and 2.70 μm.
, How does water content affect MIR reflectance? - ANSWER-Water absorbs
MIR energy stronger at longer wavelengths, resulting in decreased reflectance.
What is the purpose of a spectral index? - ANSWER-A mathematical formula
applied to specific wavelengths to highlight features or characteristics of
interest, resulting in a clean, single value.
What is the spectral response of healthy leaves in the blue and red spectrum? -
ANSWER-Healthy leaves absorb a lot of visible blue and visible red light for
photosynthesis.
What is the spatial resolution of Landsat? - ANSWER-30m
What is the historical significance of Landsat? - ANSWER-It is the oldest
global program, dating back to 1972.
What types of environmental aspects do Earth observation systems monitor? -
ANSWER-Biosphere, environmental change, oceans & freshwater, cryosphere,
and more.
What was the first image from space taken by a rocket? - ANSWER-Images
from the American V2 rocket in 1946.
What was the primary purpose of the military-developed camera systems in
space? - ANSWER-To conduct reconnaissance.
What is the significance of the MODIS system? - ANSWER-It provides daily
imagery and fine temporal information.
What is the primary focus of Earth observation systems? - ANSWER-
Continuous long-term global data collection.
AND ANSWERS|| GUARANTEED PASS||
ALREADY GRADED A+|| LATEST UPDATE 2026
How do radio waves function in communication systems? - ANSWER-Radio
waves are used in communication systems like radio broadcasting and walkie-
talkies to transmit sound.
What is the impact of atmospheric conditions on microwave transmission? -
ANSWER-Microwaves can penetrate most atmospheric conditions, making
them reliable for communication and navigation.
What type of infrared energy is emitted from thermal cameras? - ANSWER-
Far-Infrared
What does thermal infrared energy measure? - ANSWER-Surface temperature
What is the wavelength range of visible light? - ANSWER-0.38 - 0.7 μm
Which color of visible light has the shortest wavelength? - ANSWER-Violet
(around 380 nanometers)
Which color of visible light has the longest wavelength? - ANSWER-Red
(around 700 nanometers)
,What is the wavelength range of ultraviolet (UV) light? - ANSWER-10 - 380
nm
What happens to most UV light when it reaches the Earth's atmosphere? -
ANSWER-It is mostly blocked.
What is the wavelength range of X-rays? - ANSWER-0.01 - 10 nm
What is the wavelength range of gamma rays? - ANSWER-< 0.01 nm
What are the three possible interactions of electromagnetic radiation with the
Earth's surface? - ANSWER-Absorption, reflection, and transmission.
What is transmittance in the context of surface interactions? - ANSWER-The
fraction of radiation that penetrates into certain surface materials.
What is reflectance? - ANSWER-The portion of radiation that reflects and
scatters away from the target.
What are the three ways electromagnetic radiation interacts with Earth's
surface? - ANSWER-Electromagnetic radiation can be absorbed, reflected, or
transmitted.
What is the significance of chlorophyll in leaf reflectance? - ANSWER-
Chlorophyll pigments in the palisade parenchyma cells significantly impact the
absorption and reflectance of visible light.
What does a high NDVI value indicate? - ANSWER-Values closer to 1
represent healthier vegetation.
What wavelengths show significant water absorption bands? - ANSWER-0.97
μm, 1.19 μm, 1.45 μm, 1.94 μm, and 2.70 μm.
, How does water content affect MIR reflectance? - ANSWER-Water absorbs
MIR energy stronger at longer wavelengths, resulting in decreased reflectance.
What is the purpose of a spectral index? - ANSWER-A mathematical formula
applied to specific wavelengths to highlight features or characteristics of
interest, resulting in a clean, single value.
What is the spectral response of healthy leaves in the blue and red spectrum? -
ANSWER-Healthy leaves absorb a lot of visible blue and visible red light for
photosynthesis.
What is the spatial resolution of Landsat? - ANSWER-30m
What is the historical significance of Landsat? - ANSWER-It is the oldest
global program, dating back to 1972.
What types of environmental aspects do Earth observation systems monitor? -
ANSWER-Biosphere, environmental change, oceans & freshwater, cryosphere,
and more.
What was the first image from space taken by a rocket? - ANSWER-Images
from the American V2 rocket in 1946.
What was the primary purpose of the military-developed camera systems in
space? - ANSWER-To conduct reconnaissance.
What is the significance of the MODIS system? - ANSWER-It provides daily
imagery and fine temporal information.
What is the primary focus of Earth observation systems? - ANSWER-
Continuous long-term global data collection.
