2024知到答案 环境遥感（华中农业大学） 最新智慧树满分章节测试答案
第一章 单元测试
1、单选题：
Which of the following is not a component of the electromagnetic spectrum? （ ）
选项：
A:Infrared radiation
B:Visible light
C:Radio waves
D:Sound waves
答案: 【Sound waves】
2、单选题：
Which of the following electromagnetic radiation wavelengths is not typically used in remote sensing? （ ）
选项：
A:Ultraviolet radiation
B:Microwave radiation
C:Gamma radiation
D:Radio waves
答案: 【Gamma radiation】
3、单选题：
Spatial resolution refers to: （ ）
选项：
A:The ability of a sensor to detect different wavelengths of electromagnetic radiation
B:The distance between the sensor and the target being observed
C:The amount of energy reflected by the target being observed
D:The size of the smallest object or feature that can be detected by a remote sensing system
答案: 【The size of the smallest object or feature that can be detected by a remote sensing system】
4、单选题：
According to Wien's displacement law, if the temperature of a blackbody doubles, the wavelength of maximum radiation emitted will: （ ）
选项：
A:Double
B:Halve
C:Remain the same
D:Quadruple
答案: 【Halve】
5、单选题：
Which of the following is true about spectral resolution? （ ）
选项：
A:Lower spectral resolution means that fewer spectral bands can be detected
B:Spectral resolution is not important for image interpretation
C:Spectral resolution is determined by the size of the sensor used to collect the data
D:Higher spectral resolution means that smaller objects can be detected
答案: 【Lower spectral resolution means that fewer spectral bands can be detected】
6、单选题：
Planck's equation relates: （ ）
选项：
A:The frequency of electromagnetic radiation to its energy
B:The intensity of electromagnetic radiation to its frequency
C:The speed of electromagnetic radiation to its wavelength
答案: 【The frequency of electromagnetic radiation to its energy】
7、单选题：
Which of the following statements is true about radiance? （ ）
选项：
A:It is the amount of energy per unit area per unit time
B:It is the amount of energy per unit volume per unit time
C:It is the rate at which energy is emitted or transmitted by an object in the form of electromagnetic radiation
D:It is the amount of energy per unit solid angle per unit time
答案: 【It is the amount of energy per unit solid angle per unit time】
8、单选题：
Electromagnetic radiant flux density is measured in: （ ）
选项：
A:Joules per square meter
B:Watts per cubic meter
C:Watts per square meter
D:Watts per steradian
答案: 【Watts per square meter】
9、单选题：
Which of the following surfaces would have the highest solar energy absorption? （ ）
选项：
A:A green surface
B:A blue surface
C:A black surface
D:A white surface
答案: 【A black surface】
10、单选题：
Reflectance is the ratio of: （ ）
选项：
A:The amount of electromagnetic radiation absorbed by a surface to the amount of radiation reflected by the surface
B:The amount of electromagnetic radiation transmitted through a surface to the amount of radiation absorbed by the surface
C:The amount of electromagnetic radiation absorbed by a surface to the amount of radiation transmitted through the surface
D:The amount of electromagnetic radiation reflected by a surface to the amount of incident radiation
答案: 【The amount of electromagnetic radiation reflected by a surface to the amount of incident radiation】
第二章 单元测试
1、单选题：
Which of the following electromagnetic radiation wavelengths is typically used for thermal imaging? （ ）
选项：
A:Visible light
B:Ultraviolet radiation
C:X-rays
D:Infrared radiation
答案: 【Infrared radiation】
2、判断题：
Thermal remote sensing data usually have finer spatial resolution than the multispectral data acquired from the same platform. （ ）
选项：
A:错
B:对
答案: 【错】
3、单选题：
Which of the following is not a passive remote sensing technology? （ ）
选项：
A:Synthetic Aperture Radar (SAR)
B:Airborne LiDAR
C:Landsat
D:Moderate Resolution Imaging Spectroradiometer (MODIS)
答案: 【Synthetic Aperture Radar (SAR)】
4、单选题：
What is the major difference between the multispectral and hyperspectral remote sensing data? （ ）
选项：
A:Temporal resolution
B:Active and passive
C:Spatial resolution
D:Band width
答案: 【Band width】
5、单选题：
Why is it more difficult to apply the SAR technology to the urban areas than the forest? （ ）
选项：
A:Urban areas are warmer than the forests
B:Buildings are taller than trees
C:Buildings cause corner reflection
答案: 【Buildings cause corner reflection】
6、判断题：
SAR can measure vegetation biomass and pigment. （ ）
选项：
A:错
B:对
答案: 【错】
7、单选题：
Passive microwave remote sensing is not suitable to studying land cover change in urban areas, because （ ）
选项：
A:It has large spatial coverage
B:It can penetrate clouds
C:It has coarse resolution
答案: 【It has coarse resolution】
8、单选题：
How does Yangtze River look like in the SAR image? （ ）
选项：
A:Bright
B:Dark
C:Colorful
答案: 【Dark】
9、单选题：
Thermal remote sensing and passive microwave remote sensing both measure （ ）
选项：
A:Short-wave energy scattered by objects
B:Solar energy reflected by objects
C:Longer-wave energy emitted by objects
答案: 【Longer-wave energy emitted by objects】
10、单选题：
Which of the following remote sensing technologies is best suited for monitoring changes in land use and land cover over time? （ ）
选项：
A:RADAR
B:LiDAR
C:Hyperspectral imaging
D:Multispectral imaging
答案: 【Multispectral imaging】