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Syllabus for Screening Test for the post of Junior Geophysist

Rajasthan Public Service Commission(RPSC)

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Recruitment Year: 2025

Locations

Rajasthan

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About this Drive

RPSC has published the syllabus for the Screening Test for the post of Junior Geophysist in the Ground Water Department. The syllabus covers 13 major topics including Solid Earth Geophysics, Seismology, Remote Sensing, Borehole Geophysics, Gravity & Magnetic Methods, Electrical & EM Methods, Seismic Prospecting, and Geophysical Inversion. The test will be an objective type examination of 150 marks in 2.5 hours with negative marking.

Eligibility

The eligibility criteria and application process are governed by the main recruitment advertisement. Candidates must possess a relevant degree in Geophysics or related Earth Sciences field as specified in the main notification.

How to Apply

Read the official notification carefully before applying.
Download Official Notification
Check your eligibility — age limit, qualification, and category requirements.
Keep your documents ready — photo, signature, certificates, and ID proof.
Visit the official application portal and complete the form.
Take a printout of the submitted application for your records.

Apply Online

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junior-geophysist

rajasthan

geophysics

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Posts under this Drive (1)

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Junior Geophysist

Graduate Degree - Geophysics

Additional Information

Syllabus

Section 1

Title

Solid Earth Geophysics

Topics

Introduction to Geophysics
Formation of solar system
Earth's rotation and figure
Age of earth
Tectonics and Geodynamics
Gravity field of earth and Isostasy
Geomagnetism
Paleomagnetism
Seafloor spreading
Elastic waves
Internal structure of earth

Section 2

Title

Earthquake and Engineering Seismology

Topics

Introduction to Seismology
Phenomena of earthquakes
Focus, focal depth, epicenter
Intensity and Magnitude scales
Elastic Rebound Theory
Seismicity and Seismotectonics of India
Seismic ray theory
Seismic Tomography
Seismometry
Principle of electromagnetic seismograph

Section 3

Title

Remote Sensing and GIS Applications

Topics

Fundamental concepts of remote sensing
Electromagnetic radiation spectrum
Reflectance and emittance
Remote sensing platforms
Photogrammetry
Satellite remote sensing
Multispectral scanners
Thermal scanners
Microwave remote sensing
Fundamentals of image processing
Introduction to Geographic Information Systems (GIS)

Section 4

Title

Borehole Geophysics (Principles of Well logging)

Topics

Objectives of well logging
Borehole conditions
Formation parameters
Arhcie’s and Humble’s equations
SP log, resistivity and micro resistivity logs
Nuclear/radioactive logs
Acoustic impedance and propagation logs
Temperature log, caliper log and directional logs
Clean sand and shaly sand interpretations
Application of well-logging in groundwater

Section 5

Title

Geophysical Potential Fields (Gravity and Magnetic)

Topics

Geophysical potential fields
Inverse Square Law
Principles of Gravity and Magnetic methods
Geoid, Spheroid
Nature of gravity and its variation
Laplace’s and Poisons equations
Concept of Bouguer gravity anomaly
Rock densities
Theory of Isostacy
Earth’s main magnetic field
Coulmb’s Law
Magnetic susceptibility
Magnetic minerals
Plan of conducting GM surveys
Data reduction, IGSN Gravity bases
Separation of regional and residual anomalies
Modeling of anomalies

Section 6

Title

Electrical Methods

Topics

Electrical properties of rocks
Horizontally stratified earth
D.C Resistivity method
Profiling, Vertical Electrical Sounding
SP Method
Origin of SP, Induced Polarization
Chargeability, percent frequency effect
Dipole Theory of IP

Section 7

Title

Electromagnetic Methods

Topics

Electromagnetic methods/ Telluric/Magneto Telluric methods
Maxwell’s equations
Depth of penetration
Principles of EM prospecting
Dip angle method, Turam method
Airborne EM systems
Interpretation of EM anomalies
Origin and characteristics of MT fields

Section 8

Title

Seismic Prospecting

Topics

Basic principles of seismic methods
Fermat’s principle, Snell’s Law
Reflection, refraction and diffraction
Seismic data acquisition
Sources of energy, Geophones
Digital recording
Seismic Surveys: Refraction, Reflection
CDP, NMO correction
Fundamental of VSP method
Seismic Tomography

Section 9

Title

Radiometric Exploration / Airborne Geophysical Surveys

Topics

Principles of radioactivity
Radiometric prospecting
Airborne geophysical surveys
Sensors, data corrections
Flight path recovery methods
Applications in geological mapping
Interpretation of maps

Section 10

Title

Digital Signal Processing

Topics

Various types of signals
Sampling theorem
Fourier series
Discrete Fourier transform and FFT
Auto and cross correlations
Power spectrum
Z transform
Principles of digital filters
Processing of Random signals

Section 11

Title

Mathematical Methods in Geophysics

Topics

Properties of scalars, vectors and tensors
Gradient, Divergence and Curl
Gauss’s Divergence Theorem, Stokes theorem
Newton’s Law of gravitation
Electrostatic field, Coulomb’s Law
Magnetostatic field, Ampere’s Law
Solution of Laplace equation
Complex Variables in Potential theory
Electrical fields in geophysics
Maxwell’s equations
EM potential and waves
Radiation from dipoles

Section 12

Title

Geophysical Inversion

Topics

Fundamental concepts of inverse theory
Forward problems versus Inverse problems
Linear inverse problems
Least square solutions
Matrix Theory
Finite difference method
Finite element method
Singular Value Decomposition (SVD)
Non-linear inverse problems
Gauss Newton method
Probabilistic approach
Genetic algorithm
Simulated Annealing methods

Section 13

Title

Geophysical Equipments

Topics

Gravitymeters: Principles and types
Magnetometers: Fluxgate, proton precession
D.C. and A.C. resistivity meters
Time domain and frequency domain IP and EM equipments
Seismographs: Principle, sensors
GPR and antennae
Geophone and hydrophone
G-M counter, Scintillation meter
Gamma ray spectrometer

Exam Pattern

Pattern

Objective Type Paper

Total Marks

150

Number Of Questions

150

Duration Hours

2.5

Marking Scheme

All questions carry equal marks. Negative marking: one-third of the mark for each wrong answer will be deducted.

Medium

Bilingual in English & Hindi