JEE Main Full Syllabus Quiz 2023-2024

JEE (Main) Details

• Exam Code: 1001CJA101021230058
• Duration: 3 Hours
• Maximum Marks: 300
• Session: Academic Year 2023 - 2024
• Test Type: Test Series and Course Package (Score-II) for JEE (Main and Advanced)

Important Instructions

• Students with an 8-digit Form Number must prefix it with two zeros when filling out the OMR sheet.
• Example: For Form No. 12345678, it should be filled as 0012345678.

Additional Information

• Emphasis on reading instructions thoroughly before starting the exam.
• Instructions are provided in both English and another language for clarity.

Exam Structure and Marking Scheme

• Maximum marks for the exam are 80, divided into two sections.
• Each section consists of Multiple-Choice Questions (MCQs) with four options for each question.
• Scoring System:
  • +4 marks for each correct answer.
  • 0 marks for unanswered questions.
  • -1 mark for incorrect answers.

Topics Covered in Physics MCQs

• Instantaneous current (I) and instantaneous emf (E) variations in circuits.

  • The relationship between current and voltage phases is tested.

• Alpha emission and decay concepts.

  • Understanding energy transfer and particle movement is key.

• Specific heat calculations when mixing different liquids.

  • Analyze final temperature based on mass and specific heat of the combined liquids.

• Measurements with a travelling microscope.

  • Application of vernier scale readings for precision.

• Radiation emitted from a Coolidge tube.

  • Effects of filament current and potential difference on radiation intensity.

• Relation between nuclear mass numbers and radius ratios of spherical nuclei.

• Conductivity of pure germanium at room temperature.

  • Consider electron and hole mobility and densities.

• Ideal gas behavior under specific pressure and volume relationships.

  • Understanding of volume expansion coefficients derived from gas laws.

• Circuit analysis with batteries.

  • Assessing the potential at various points in a circuit configuration.

• Electric fields and charge movement.

  • Insights into electric field lines and the behavior of charged particles in these fields.

Key Physics Principles and Concepts

• Understanding of spectrum analysis of stars to infer temperature relationships.

  • Intensity of various colors indicates respective star temperatures.

• Electric lines of force and their relationship to electric intensity.

  • Important to differentiate between proportionality and independence of electric line density.

• Image formation with convex lenses between parallel walls.

  • Application of optical principles to determine required focal length.

• Photoelectric effect and stopping potential associated with varying wavelengths.

  • Relates thresholds in wavelength to stopping potentials.

• Momentum conservation principles in collisions.

  • Fundamental understanding of energy transfer during elastic and inelastic collisions.

• Mechanics of rubber bands and their behavior under stress.

  • Force-extension relationships define material properties and behavior under load.

Miscellaneous Key Observations

• Questions range from theoretical principles to practical applications in laboratory settings.
• Students should be familiar with both fundamental concepts as well as applied physics scenarios in their problem-solving approaches.### Light Intensity and Electric Field Amplitude
• Light intensity from a source is 500 W/m².
• The amplitude of the electric field in this wave is given multiple options:
  • (A) √3 × 10² N/C
  • (B) 2√3 × 10² N/C
  • (C) √3 × 10² N/C / 2
  • (D) 2√3 × 10¹ N/C

Barometer Reading and Atmospheric Pressure

• A barometer reads 75.0 cm at a room temperature of 30 °C.
• Scale graduated for 0 °C, coefficient of linear expansion for steel is α = 1.2 × 10⁻⁵/°C.
• Coefficient of volume expansion for mercury is γ = 1.8 × 10⁻⁴/°C.
• Correct atmospheric pressure is estimated close to:
  • (A) 75
  • (B) 75.4
  • (C) 74
  • (D) 74.6

Transformer Specifications

• A step-up transformer has a turns ratio of 3 with efficiency of 0.75.
• Primary coil current is 2A, and voltage is 100V.
• Secondary coil output voltage and current correspond to:
  • (A) 150 V, 1.5 A
  • (B) 300 V, 0.5 A
  • (C) 300 V, 1.5 A
  • (D) 150 V, 0.5 A

Young's Double Slit Experiment

• Distance between slits S1 and S2 is 1.0 mm.
• To achieve 5 maxima in the central maximum of the single slit pattern, the required slit width options include:
  • (A) 0.2 mm
  • (B) 0.4 mm
  • (C) 12 cm
  • (D) 0.1 mm

Numerical Value Questions

• Candidates need to attempt 5 out of 10 numerical value questions in Section II.
• Marking scheme:
  • Full Marks: +4 for a correct answer
  • Zero Marks: 0 for unanswered
  • Negative Marks: –1 for a wrong answer

Miscellaneous Physics Questions

• For varying magnetic fields and induced EMF, calculated through given magnetic induction formulas.
• Concepts of impulse associated with blocks under gravitational influence.
• Energy dissipation rate across resistances in inductive systems.
• The relationship between light intensity starvation due to polarization sheets.

Borax Bead Test Chemistry

• Clarification on statements related to the borax bead test and its outcomes in reactions with metal oxides.
• Items include properties of alkaline solutions formed, colored bead formations, and back bonding presence in borax.

Nickel Complex Chemistry

• In bis-(dimethylglyoximato)nickel(II), summation of specific bonds (Ni-N, Ni-O, intramolecular hydrogen bonds) is evaluated with various choices in total counts.
• Assertion and Reason questions address oxidation states of transition metals and their electronic configurations.

Acidic Strength Comparison

• Assessment of acidic strength among different compounds presented in multiple-choice formats, determining the correct decreasing order.

These notes encapsulate key academic concepts and numeric calculations in physics and chemistry, aligned with exam preparation strategies.### Chemical Tests and Reactions

• CAN Test: Identified by a Scarlet Red color.
• Molisch's Test: Produces a Purple color.
• Ninhydrin Test: Results in a Red color.
• β-Naphthol (Azo dye test): Displays a Violet color.

Reasons and Assertions in Chemistry

• Assertion A: Aryl halides cannot be formed by halogenating phenols via hydroxyl group replacement.
• Reason R: Phenols react violently with halogen acids.
• To evaluate the assertions, analyze their truth and whether reason R correctly explains assertion A.

Purification and Extraction Techniques

• Solubility Principle: Used in Differential Extraction for purifying compounds based on solubility in two different solvents.
• Column Chromatography: A method that also relies on solubility for separation and purification processes.

Oxygen Preparation Methods

• Reaction of potassium chlorate:
  2KClO3 → 2KCl + 3O2 (MnO2 as a catalyst).
• Decomposition of silver oxide:
  2Ag2O → 4Ag + O2.
• Catalytic decomposition of hydrogen peroxide is another method.

Oxide Behavior in Aqueous Solutions

• V2O3 changes from basic to less basic (V2O4) and finally to amphoteric (V2O5).
• V2O4 dissolves in acids, forming VO2+ salts.
• V2O5 interacts with both bases and acids, producing different vanadium ions.

Evaluation of Statements in Mathematics

• Multiple-choice questions: Each question has one correct answer, with scores based on accuracy.
• Key concepts in survey data and real number relations, as well as curve equations and tangents.

Key Chemistry Concepts

• The formula for carbon dioxide complexes involving cobalt in aqueous medium can be influenced by equilibrium constants indicating vibrational energy levels.
• The thermal breakdown of diborane in ammonia can vary in efficiency, affecting the yield of products.

Color and Precipitation Matching

• Identification of correctly matched colors with various precipitates, such as:
  • Fe(OH)2(CH3COO –): Brown Red.
  • PbCrO4: Red.
  • CrO5: Yellow.
• Importance of color matching in identifying chemical compounds.

Reaction Products and Stoichiometry

• Digging into the maximum number of moles of reagents that can be used in a reaction, such as hot concentrated HI with a mole ratio.
• Cannizzaro reactions help in understanding oxidation-reduction mechanisms in organic chemistry.

Condensing Information

• This text consists of various definitions, procedural reactions, and calculations that are pivotal for understanding chemical behaviors, testing methods, assertions in chemical reactions, and purification techniques essential for mastering chemistry concepts.