UPSC Civil Services Main 2023 Physics Paper II PDF

Central Government Jobs Administrative / Civil Services 2023

  • Year 2023
  • Conducted By UPSC
  • Questions 8
  • Maximum Marks 250
  • Duration Three Hours
  • Languages Hindi & English

Exam Details

Detail Information
Examination Civil Services (Main) Examination
Year 2023
Conducting Body UPSC
Paper Physics (Paper II)
Subject Physics
Duration Three Hours
Maximum Marks 250
Number of Questions 8
Question Type Mixed

This is the official question paper for the Physics (Paper II) of the UPSC Civil Services (Main) Examination held in 2023. The paper allows a maximum of 250 marks and a duration of three hours. It is divided into two sections with a total of eight questions, of which candidates must attempt five, including compulsory questions 1 and 5, and at least one from each section. This paper is crucial for candidates opting for Physics as their optional subject in the UPSC Civil Services Main exam, providing insights into the types of questions asked and the depth of knowledge required.

Major Topics Covered

  • Physics
  • Classical Mechanics
  • Electromagnetism
  • Thermodynamics
  • Statistical Mechanics
  • Quantum Mechanics
  • Atomic and Molecular Physics
  • Solid State Physics
  • Nuclear and Particle Physics
  • Electronics

Why This Paper is Important

  • Useful for CIVIL SERVICES (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

  • UPSC Civil Services Main 2023 Physics Paper I
  • UPSC Civil Services Main 2022 Physics Paper II
  • UPSC Civil Services Main 2023 General Studies Paper I
  • UPSC Civil Services Main 2023 Physics Paper II Answer Key
  • UPSC Civil Services Main Physics Optional Syllabus
  • UPSC Civil Services Main Exam Pattern
  • UPSC Civil Services (Preliminary) Examination
  • UPSC Engineering Services Examination

Instructions

  • पुस्तिका के मुखपृष्ठ पर निर्दिष्ट स्थान पर किया जाना चाहिए।
  • प्राधिकृत माध्यम के अतिरिक्त अन्य किसी माध्यम में लिखे गए उत्तर पर कोई अंक नहीं मिलेंगे।
  • यदि आवश्यक हो, तो उपयुक्त आँकड़ों का चयन कीजिए तथा उनको निर्दिष्ट कीजिए ।
  • जब तक उल्लिखित न हो, संकेत तथा शब्दावली प्रचलित मानक अर्थों में प्रयुक्त हैं।
  • प्रश्नों के उत्तरों की गणना क्रमानुसार की जाएगी ।
  • यदि काटा नहीं हो, तो प्रश्न के उत्तर की गणना की जाएगी चाहे वह उत्तर अंशतः दिया गया हो ।
  • प्रश्न-सह-उत्तर पुस्तिका में खाली छोड़ा हुआ पृष्ठ या उसके अंश को स्पष्ट रूप से काटा जाना चाहिए।

  • There are EIGHT questions divided in TWO SECTIONS and printed both in HINDI and in ENGLISH.
  • Candidate has to attempt FIVE questions in all.
  • Question Nos. 1 and 5 are compulsory and out of the remaining, THREE are to be attempted choosing at least ONE question from each Section.
  • The number of marks carried by a question/part is indicated against it.
  • Answers must be written in the medium authorized in the Admission Certificate which must be stated clearly on the cover of this Question-cum-Answer (QCA) Booklet in the space provided.
  • No marks will be given for answers written in a medium other than the authorized one.
  • Assume suitable data, if considered necessary, and indicate the same clearly.
  • Unless and otherwise indicated, symbols and notations carry their usual standard meanings.
  • 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.

Questions (page 2)

Q1.

(a) निर्वात में प्रकाश का वेग (c)
Speed of light in vacuum (c)

(b) इलेक्ट्रॉन का द्रव्यमान (me)
Mass of electron (me)

(c) इलेक्ट्रॉन का आवेश (e)
Charge of electron (e)

(d) इलेक्ट्रॉन का विशिष्ट आवेश (e)/(me))
Specific charge of electron (e)/(me))

(e) 1 a.m.u. = 1.6605 × 10-27 kg
1 a.m.u. = 1.6605 × 10-27 kg

Q2.

(a) इलेक्ट्रॉन की विरामावस्था द्रव्यमान ऊर्जा (me c2)
Rest mass energy of electron (me c2)

(b) मुक्त आकाश में विद्युतशीलता (\epsilon0)
Permittivity of free space (\epsilon0)

(c) मुक्त आकाश की पारगम्यता (μ_0)
Permeability of free space (μ_0)

(d) गैस स्थिरांक (R)
Gas constant (R)

(e) बोल्ट्ज़मान स्थिरांक (k_B)
Boltzmann constant (k_B)

Q3.

(a) प्लांक स्थिरांक (h)
Planck constant (h)

(b) बोर मैभेटॉन (μ_B)
Bohr magneton (μ_B)

(c) नाभिकीय मैभेटॉन (μ_N)
Nuclear magneton (μ_N)

(d) सूक्ष्म संरचना स्थिरांक (α)
Fine structure constant (α)

(e) प्रोटॉन का द्रव्यमान (mp)
Mass of proton (mp)

Q4.

(a) न्यूट्रॉन का द्रव्यमान (mn)
Mass of neutron (mn)

(b) ड्यूटेरॉन का द्रव्यमान (md)
Mass of deuteron (md)

(c) α-कण का द्रव्यमान (m_α)
Mass of α-particle (m_α)

(d) ^{12}C का द्रव्यमान
Mass of ^{12}C

(e) ^{16}O का द्रव्यमान
Mass of ^{16}O

Q5.

(a) ^{87}Sr का द्रव्यमान
Mass of ^{87}Sr

(b) ^{4}He का द्रव्यमान
Mass of ^{4}He

(c) कक्षीय घूर्णचुम्बकीय अनुपात (gl)
Orbital gyromagnetic ratio (gl)

(d) स्पिन घूर्णचुम्बकीय अनुपात (gs)
Spin gyromagnetic ratio (gs)

Question paper preview

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

Page 1
UPSC Civil Services Main 2023 Physics Paper II question paper page 1 scan, showing exam instructions in Hindi and English, PDF download
Page 2
UPSC Civil Services Main 2023 Physics Paper II question paper page 1 scan, showing exam instructions in Hindi and English, PDF download

Free question paper download

Download question paper PDF

  • 3.6 MB
  • 10 pages
  • PDF format

Frequently asked questions

What is the name of the exam?

The exam is the Civil Services (Main) Examination.

Which paper is this question paper for?

This is for Physics (Paper II).

What is the conducting body?

The Union Public Service Commission (UPSC).

What is the year of the examination?

The examination year is 2023.

What is the maximum marks for this paper?

The maximum marks for Physics (Paper II) is 250.

What is the time allowed to complete the paper?

The time allowed is Three Hours.

← Back to Administrative / Civil Services papers