In case of a remote sensing system, which of the following factors does NOT affect the property of a reflected incident radiation?

This question was previously asked in
SSC JE Civil 10 Oct 2023 Shift 1 Official Paper-I
View all SSC JE CE Papers >
  1. Angle of incident radiation
  2. Roughness of the surface
  3. Wavelength of radiation
  4. Type of electromagnetic radiation

Answer (Detailed Solution Below)

Option 4 : Type of electromagnetic radiation
Free
Building Materials for All AE/JE Civil Exams Mock Test
14.9 K Users
20 Questions 20 Marks 20 Mins

Detailed Solution

Download Solution PDF

Explanation 

When the energy from an external source enters Earth's atmosphere, it interacts with the atmosphere and gets

Refracted-> Scattered -> Absorbed .

The radiant energy from the Sun, after passing through the atmosphere reaches the Earth's surface, and three things happen

i) some portion of the energy is reflected by the
earth surface,

ii) some portion of energy is transmitted into the surface

iii) and some portion of it is absorbed and emitted by the earth’s surface later on

Talking specifically about the reflectance property of the earth's surface which affects the reflected rays

  • The reflection intensity depends on the surface roughness, absorption coefficient, and the angles of incidence and reflection.
  • Surface roughness is a function of the wavelength of incident radiation
  • Depending upon whether the surface is smooth or rough, the reflection can be either specular or diffuse.

we can answer the question with this knowledge

Latest SSC JE CE Updates

Last updated on May 28, 2025

-> SSC JE notification 2025 for Civil Engineering will be released on June 30. 

-> Candidates can fill the SSC JE CE application from June 30 to July 21.

-> The selection process of the candidates for the SSC Junior Engineer post consists of Paper I, Paper II, Document Verification, and Medical Examination.

-> Candidates who will get selected will get a salary range between Rs. 35,400/- to Rs. 1,12,400/-.

-> Candidates must refer to the SSC JE Previous Year Papers and SSC JE Civil Mock Test, SSC JE Electrical Mock Test, and SSC JE Mechanical Mock Test to understand the type of questions coming in the examination.

-> The Staff Selection Commission conducts the SSC JE exam to recruit Junior Engineers in different disciplines under various departments of the Central Government.

Get Free Access Now
Hot Links: teen patti flush teen patti yes teen patti master list