GEO-PHYSICS Paper II 2021 — Combined Geo-Scientist (Main) Exam
- Year 2021
- Conducted By Unknown (from OCR)
- Questions 10
- Maximum Marks 200
- Duration Three Hours
- Languages English
Exam Details
| Detail | Information |
|---|---|
| Examination | Combined Geo-Scientist (Main) Examination |
| Year | 2021 |
| Conducting Body | Unknown (from OCR) |
| Paper | GEO-PHYSICS |
| Duration | Three Hours |
| Maximum Marks | 200 |
| Number of Questions | 10 |
This dataset consolidates Page 1 and Page 2 OCR data for GEO-PHYSICS Paper II of the Combined Geo-Scientist (Main) Examination, 2021. Page 1 provides the exam header, maximum marks (200), time (three hours), and the two-section pattern: ten questions with a requirement to attempt six questions total, with questions 1 and 6 compulsory. It also lists key physical constants (electron rest mass, Bohr magneton, Nuclear magneton, Boltzmann constant, etc.) and the instruction that answers must be in English. Page 2 contains Section A questions: (Q1) magnetism, gravity and Poisson relations, resistivity configurations (Wenner vs Schlumberger), multiples, bed anisotropy, Hydrogen Index, and gas-log related queries; (Q2) a frequency-domain prospecting problem involving mutual inductance between transmitter and receiver. The OCR repair results organize these questions into clearly separated items for web publication and SEO enhancement, with image metadata and extended SEO fields.
Major Topics Covered
- Combined Geo-Scientist
- Geophysical Prospecting
- Magnetism
- Earth's Magnetic Field
- Poisson Relation
- Gravity Potential
- Magnetic Potential
- Electrical Resistivity
- Wenner Configuration
- Schlumberger Configuration
- Geoelectrical Section
- Anisotropy
- Hydrogen Index
- Neutron Porosity Logging
- Density Porosity Logging
- Gas Log
- Mutual Inductance
- Transmitter-Receiver
- Frequency Domain Prospecting
- Geophysics Education Material
Why This Paper is Important
- Useful for Combined Geo-Scientist (Main) Examinatio preparation
- Helps understand the latest exam pattern
- Useful for practice and self-assessment
- Covers frequently asked General Studies topics
- Helpful for analysing question trends
Related Resources
Instructions
- There are TEN questions divided under TWO sections.
- Candidate has to attempt SIX questions in all.
- Out of the remaining EIGHT questions, FOUR questions are to be attempted choosing TWO from each section.
- The number of marks carried by a question / part is indicated against it.
- Neat sketches may be drawn to illustrate answers, wherever required.
- These shall be drawn in the space provided for answering the question itself.
- Unless otherwise mentioned, symbols and notations have their usual standard meanings.
- Assume suitable data, if necessary, and indicate the same clearly.
- Attempts of questions shall be counted in sequential order.
- Unless struck off, attempt of a question shall be counted even if attempted partly.
- Any page or portion of the page left blank in the Question-cum-Answer Booklet must be clearly struck off.
- Answers must be written in ENGLISH only.
- Physical Constants: 9.109 \times 10^{-31} kg Electron rest mass, m_{\rho} = 1.672 \times 10^{-27} kg Proton rest mass, m_n = 1.675 \times 10^{-27} kg Neutron rest mass, m_n = Atomic mass unit (C^{12} \equiv 12), a.m.u. = 1.661 \times 10^{-27} kg 9.27 \times 10^{-24} J/tesla Bohr magneton, \mu_B = 5.05 \times 10^{-27} J/tesla Nuclear magneton, \mu_N = 1.381\times10^{-23}\text{ J/K} Boltzmann constant, k_B =
Questions (page 2)
Q1. Q1. Draw a neat sketch explaining the elements of the Earth's magnetic field. Write down the Poisson's relation between gravity potential and magnetic potential.
Q2. Q2. prospecting In frequency domain (a) survey, a Transmitter (T) and a Receiver (R) loops are placed at a test site in free space. If harmonically time varying current of 1000 Hz and magnitude, I0 of 2 A in the transmitter loop produces induced emf in receiver loop of magnitude 1 volt, calculate mutual inductance between transmitter and receiver loop along with the phase difference between transmitter current and induced emf in the receiver loop for harmonic transmitter current represented by IT = I0 cos ω t.
Question paper preview
Scanned pages 1–2 for reference. Download the official PDF for the full paper.
Free question paper download
Download question paper PDF
Your download starts in 10s
Preparing your question paper file…
Frequently asked questions
What is the name of the examination?
Combined Geo-Scientist (Main) Examination, GEO-PHYSICS Paper II.
How many questions are there and how many sections?
There are ten questions divided into two sections.
Which questions are compulsory?
Questions numbered 1 and 6 are compulsory.
How many questions must be attempted in total?
Candidate must attempt six questions in all.
How should answers be written?
Answers must be written in ENGLISH only.
What is the maximum marks for Paper II?
Maximum marks are 200.