Indian Forest Service 2022 Physics Paper I Question Paper PDF

Central Government Jobs Other Jobs 2022

  • Year 2022
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 200
  • Duration Three Hours
  • Languages English

Exam Details

Detail Information
Examination Indian Forest Service (Main) Examination
Year 2022
Conducting Body UPSC
Paper Physics Paper - I
Subject Physics
Duration Three Hours
Maximum Marks 200
Number of Questions 8
Question Type Mixed

This document contains the Physics Paper I from the Indian Forest Service (Main) Examination 2022, conducted by UPSC. The paper is designed to test candidates' in-depth knowledge of Physics, with a total of 200 marks to be completed within three hours. It comprises eight questions, of which five are compulsory, including questions 1 and 5. Candidates must attempt at least one question from each of the two sections (A and B) from the remaining six questions. This paper is crucial for aspirants aiming to qualify for the Indian Forest Service, providing a clear understanding of the exam's scope and difficulty level. This previous year Indian Forest Service (Main) Examination question paper (2022) is useful for Other Jobs aspirants preparing for Central government recruitment. The paper was conducted by UPSC and reflects the official exam pattern, marking scheme and difficulty level seen in recent cycles. Use it for timed practice, topic-wise revision and understanding how questions are framed in the real examination. Download the free PDF on QuizCurrent to read instructions, attempt MCQs and compare your answers with the study notes provided on this page. Key syllabus areas include Classical Mechanics, Relativistic Mechanics, Optics, Wave Optics, Holography, Beats, Frequency, Wavelength. Useful for Indian Forest Service (Main) Examination preparation. Helps understand the latest exam pattern. Useful for practice and self-assessment.

Major Topics Covered

  • Classical Mechanics
  • Relativistic Mechanics
  • Optics
  • Wave Optics
  • Holography
  • Beats
  • Frequency
  • Wavelength
  • Coherence
  • Bandwidth

Why This Paper is Important

  • Useful for Indian Forest Service (Main) Examination 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

  • Indian Forest Service (Main) Examination 2021 Physics Paper I
  • Indian Forest Service (Main) Examination 2022 Physics Paper II
  • Civil Services Examination 2022 Physics Paper
  • IFS 2022 Physics Paper I Answer Key
  • UPSC IFS Main 2022 Physics Solutions
  • IFS Main Physics Syllabus
  • UPSC Physics Syllabus
  • IFS Main Exam Pattern

Instructions

  • There are EIGHT questions in all, out of which FIVE are to be attempted.
  • Out of the remaining SIX questions, THREE are to be attempted selecting at least ONE question from each of the two Sections A and B.
  • 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.
  • The number of marks carried by a question/part is indicated against it.
  • Unless otherwise mentioned, symbols and notations have their usual standard meanings.
  • Assume suitable data, if necessary and indicate the same clearly.
  • Neat sketches may be drawn, wherever required.
  • Answers must be written in ENGLISH only.
  • Useful Constants: Electron charge (e) =
  • 602 \times 10^{-19} C Electron rest mass (m_e) =
  • 109 \times 10^{-31} kg Proton mass (m_n) =
  • 672 \times 10^{-27} kg Vacuum permittivity (\varepsilon_0) =
  • 854 \times 10^{-12} farad/m Vacuum permeability (\mu_0) = 4\pi \times 10^{-7} T m/A Velocity of light in free space (c) = 3 \times 10^8 m/s Boltzmann constant (k) =
  • 380 \times 10^{-23} J/K Electron volt (eV) =
  • 602 \times 10^{-19} J Planck constant (h) =
  • 626 \times 10^{-34} J s Stefan constant (\sigma) =
  • 022 \times 10^{26} kmol-1 Gas constant (R) =
  • 31 \times 10^3 J kmol-1 K-1 exp(1) = 2.

Questions (page 2)

Section A

Q1.

(a) Consider a particle of mass m moving in a potential field of the form V(\vecr) = V0(x2 + y2), where V0 is a constant. What are the conserved physical quantities for the particle?

(c) A tuning fork A produces 6 beats per second with another tuning fork B of frequency 508 Hz. When the prongs of A are loaded with a little wax, number of beats heard are 4 per second. Find the frequency of A before it was loaded with wax.

(d) A transmission hologram is recorded in a medium of refractive index 1.15. If the spacing between the two consecutive maxima is 557 nm and the angle of incidence of reference and object waves from the reference axis (say z-direction) is 30°, find the wavelength of the light source.

(e) The coherence length and the bandwidth of a light source is 3 km and 1 × 10-5 nm, respectively. Determine its wavelength and the pulse duration.

Question paper preview

Scanned pages 1–2 for reference. Download the official PDF for the full paper.

Page 1
Indian Forest Service Main 2022 Physics Paper I question paper page 1 instructions and exam header scan PDF download
Page 2
Indian Forest Service Main 2022 Physics Paper I question paper page 1 instructions and exam header scan PDF download

Free question paper download

Download question paper PDF

  • 2.6 MB
  • 8 pages
  • PDF format

Frequently asked questions

What is the name of the examination?

The examination is the Indian Forest Service (Main) Examination.

What is the year of this question paper?

This question paper is from the year 2022.

Which paper is this question paper for?

This is Physics Paper - I.

Who conducts the Indian Forest Service Examination?

The examination is conducted by UPSC (Union Public Service Commission).

What is the maximum marks for Physics Paper - I?

The maximum marks for Physics Paper - I is 200.

What is the time allowed to complete the paper?

The time allowed to complete the paper is Three Hours.

← Back to Other Jobs papers · Central Government Jobs