Maharashtra Forest Services Physics 2025 Paper

Maharashtra Government Jobs Other Jobs 2025

  • Year 2025
  • Conducted By Maharashtra Government
  • Questions 8
  • Maximum Marks 200
  • Duration Three Hours
  • Languages English

Exam Details

Detail Information
Examination Maharashtra Forest Services Main Examination
Year 2025
Conducting Body Maharashtra Government
Paper Physics
Subject Physics
Duration Three Hours
Maximum Marks 200
Number of Questions 8
Question Type Conventional/descriptive

This dataset represents the Maharashtra Forest Services Main Examination Physics paper (2025). It includes exam details such as duration (three hours), maximum marks (200), and structure (eight questions with five to be attempted; Q1 and Q5 compulsory). Section A contains seven subparts (a–g) spanning coriolis force, chromatic aberration, Poisson/Laplace equations, magnetic hysteresis, entropy, equipartition of energy, and optical fibre dispersion. Section B comprises three questions (Q2, Q3) on advanced topics: Lagrange's equations, Michelson interferometry, electric dipole, Maxwell's equations, Planck's law, Wien/Rayleigh-Jeans regimes, and Biot–Savart law. The page also lists general exam instructions and calculator allowances, providing a holistic view of the paper's scope for study and SEO relevance.

Major Topics Covered

  • Coriolis force
  • Chromatic aberration
  • Achromatism
  • Poisson's equation
  • Laplace's equation
  • Electrostatics boundary-value problems
  • Magnetic hysteresis
  • B-H loop
  • Entropy
  • Irreversible vs reversible processes
  • Equipartition of energy
  • Specific heat of diatomic gas
  • Attenuation in optical fibres
  • Material dispersion in fibres
  • Single-mode optical fibres
  • Lagrange's equation of motion
  • Simple pendulum
  • Michelson interferometer
  • Wavelength determination
  • Electric dipole
  • Potential and electric field of a dipole
  • Maxwell's equations
  • Wave equation
  • Electromagnetic waves
  • Planck's law
  • Wien's displacement law
  • Rayleigh-Jeans law
  • Biot-Savart law
  • Magnetic field on axis of circular coil
  • Faraday's law
  • Electromagnetic wave speed

Why This Paper is Important

  • Useful for Maharashtra Forest Services Main Examina 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

  • महाराष्ट्र वन सेवा सुख्य परीक्षा - 2025 दि.09 में 2026 2025 U24 BOOKLET NO. 113111 Forest Services Physics Time Allowed: Three Hours Maximum Marks : 200 Medium : English Type of Paper : Conventional/Descriptive

  • There are EIGHT questions divided in two Sections, out of which FIVE are to be
  • attempted. Question No. 1 and 5 are compulsory. 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/sub-question is indicated against it. * SE
  • Keep in mind the word limit indicated in the question if any. ⋇ Wherever option has been given, only the required number of responses in the serial order attempted
  • Unless struck off, attempt of a question shall be counted even if attempted partly.
  • Excess responses shall not be assessed and shall be ignored.
  • Candidates are expected to answer all the sub-questions of a question together.
  • If sub-question of a question is attempted elsewhere (after lcaving a few page or after attempting another question) the later sub-question shall be overlooked.
  • Any page or portion of the page left blank in the Answer Booklet must be clearly struck off.
  • Unless otherwise mentioned, symbol and notation have their usual standard meanings. Assume suitable
  • data, if necessary and indicate the same clearly. Neat sketches may be drawn, wherever required.
  • The medium of answer should be mentioned on the answer book as claimed in the application and
  • printed on admission card.
  • The answers written in medium other than the authorized medium will not be assessed and no marks will be assigned to them.
  • Note: Candidates will be allowed to use Scientific (Non-programmable type) calculators.

Questions (page 2)

Q1.

(a) 01. Explain the concept of coriolis force.

(b) Discuss its effect on a body falling freely under gravity on the earth surface. [8 marks]\n What is chromatic aberration ? Derive the condition for achromatism for a combination of two thin lenses placed in contact. [8 marks]\n

(c) State and derive Poisson's and Laplace's equation, mention their physical significance in solving boundary-value problem in electrostatics. [8 marks]\n

(d) Explain the phenomenon of magnetic hysteresis in ferromagnetic materials.

(e) Show that the hysteresis energy loss per unit volume per cycle of magnetization is equal to the area of B-H loop. [8 marks]\n Define entropy. Show that the entropy of a perfect gas increases in an irreversible process and remain constant in a reversible process. [8 marks]\n(f) State and explain the theorem of equipartition of energy. How is it applied to determine the specific heat of a diatomic gas? [8 marks]\n(g) Explain the concepts of attenuation and material dispersion in single-mode optical fibres. [8 marks]

Q2.

(a) 02. Derive Lagrange's equation of motion for a conservative holonomic dynamical system. Use these equations to find the equation of motion and the time period of a simple pendulum. [15 marks]\n

(b) Describe the construction and working of a Michelson interferometer. Explain how it can be used to determine the wavelength of a monochromatic source of light and the difference in wavelength between two closely spaced spectral lines. [15 marks]\n

(c) Define an electric dipole. Derive an expression for the potential and electric field intensity at any point due to a short electric dipole. [10 marks]

Q3.

(a) 03. State Maxwell's equation for the electromagnetic field in a vacuum. Derive the wave equation for electric and magnetic field in free space and show that electromagnetic waves travel with the speed of light. [15 marks]\n

(b) Derive Planck's law of blackbody radiation using quantum postulates.

(c) Show how it mathematically reduces to Wien's displacement law at shorter wavelengths and the Rayleigh-Jeans law at longer wavelengths. [15 marks]\n State the Biot-Savart law. Apply it to calculate the magnetic field induction at a point located on the axis of a circular coil carrying current. [ ? marks]

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Frequently asked questions

What is the duration of the Maharashtra Forest Services Physics paper?

Three Hours.

How many questions are there in the paper and how many must be attempted?

There are eight questions in two sections; five must be attempted, with Question 1 and Question 5 compulsory.

What is the medium of the Maharashtra Forest Services Physics paper?

Medium: English.

Which topics are covered in Section A?

Section A includes coriolis force, chromatic aberration, Poisson and Laplace equations, magnetic hysteresis, entropy, equipartition of energy, and optical fibre dispersion.

What topics are included in Section B?

Section B includes Lagrange's equation of motion, Michelson interferometer, electric dipole, Maxwell's equations, Planck's law, Wien/Rayleigh-Jeans limits, Biot-Savart law.

Is a calculator allowed?

Candidates will be allowed to use Scientific (Non-programmable type) calculators.

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