🔥TOP 25 Most Repeated Formula to Score 60+ Marks | JEE Mains 2026 | JEE Physics

Introduction to the Session

Overcoming Challenges in Physics Preparation

• The speaker, Abdul Samad Khan, addresses feelings of loneliness and despair during challenging times, emphasizing resilience and support.

• He highlights the urgency of preparation for the upcoming JEE Mains exam starting on January 21, with only ten days left for students to prepare effectively.

Addressing Common Struggles

• Many students express concerns about their physics scores, with some stuck at low marks (16-40), prompting a discussion on strategies to improve.

• The speaker reassures students that he will stand by them until the last day and guarantees that they can achieve scores above 80 if they follow his guidance.

Strategies for Improvement

Maximizing Last-Minute Study Efforts

• Emphasizes that even if students haven't studied much yet, there are effective strategies to significantly improve their scores in the remaining time.

• Encourages full attention throughout the session as he plans to reveal crucial formulas that can lead to high percentile scores in physics.

Importance of Formula-Based Questions

• Cites data indicating that approximately 70-75% of questions in JEE Mains physics are formula-based, making it essential for students to focus on these areas.

• Discusses trends from recent exams showing an increase in direct formula-based questions which are quicker to solve.

Key Formulas for Success

Identifying Essential Formulas

• The speaker claims this session offers unique insights not found elsewhere on YouTube regarding critical formulas needed for success.

• He has analyzed past five years' worth of exam questions to identify which formulas frequently appear and assures students they cannot memorize all 250+ formulas but can focus on key ones.

Guaranteeing Question Coverage

• After extensive analysis, he presents a list of 25 essential formulas likely to yield at least 15 questions in the upcoming exam based on historical data.

• Students are encouraged to trust this method; mastering these formulas could secure significant marks without needing exhaustive study.

Conclusion: Final Push Before Exams

Focused Preparation Strategy

• The speaker stresses that while understanding concepts is important, given the limited time frame, focusing solely on memorizing key formulas is a practical approach right now.

Understanding the Importance of 25 Formulas in Physics

Key Insights on Formula-Based Questions

• The speaker emphasizes that while students may struggle to read and comprehend lengthy chapters, mastering 25 key formulas can significantly enhance their performance in physics exams.

• Out of 25 questions in a typical physics paper, at least 15 are expected to be formula-based, making it crucial for students to focus on these formulas for scoring well.

• The speaker urges viewers to like the video and subscribe to the channel, highlighting that merely knowing the formulas is not enough; understanding their application is essential.

Challenges in Learning Formulas

• The speaker acknowledges that only about 10% of students might effectively study independently, while many will struggle with finding resources and practicing questions related to the formulas.

• Memorizing formulas without comprehension leads to difficulties in applying them during exams; thus, additional effort beyond rote memorization is necessary.

Preparation Strategy for Upcoming Exams

• Students are encouraged to utilize the remaining days before exams effectively by preparing thoroughly with the provided resources.

• Despite technical issues preventing a scheduled session, significant research was conducted by the speaker to prepare valuable content for students.

Live Session Announcement

• A live session is planned where all participants are encouraged to attend. This session aims to cover high-weightage topics relevant for upcoming exams.

• The "Gadar Series" has previously predicted exam questions accurately; this year’s series promises even better alignment with actual exam content.

Revision and Formula Application

• The live session will include comprehensive revision of important topics and practice questions that align closely with what will appear on tests.

• Students who wish to achieve over 70 marks should participate actively in this session as it covers critical areas needed for success.

Achieving Marks through Formula Mastery

• It is possible for students to score well (60+ marks) by focusing solely on memorizing key formulas if they dedicate time efficiently.

• The speaker reassures students that achieving good scores through formula mastery is feasible based on past trends from previous years' performances.

By following these insights and participating actively in upcoming sessions, students can enhance their understanding of physics concepts and improve their examination outcomes.

Projectile Motion and Key Formulas

Introduction to Important Formulas

• The speaker emphasizes the importance of memorizing various formulas related to projectile motion, including time of flight, horizontal range, and maximum height.

• A question from the laws of motion is anticipated, likely involving bodies in contact or pulley systems where acceleration is calculated using the formula: net force / total mass.

Work-Energy Power Chapter Insights

• The work-energy theorem states that work done equals the change in kinetic energy. Additionally, conservation of energy indicates that total initial energy equals total final energy.

Rotational Motion Concepts

• For questions on rotational motion, knowing the moment of inertia is crucial for directly calculating answers.

Gravitation and Escape Velocity

Gravitational Formulas

• The formulas for gravitational acceleration at height (h) and depth are highlighted. At depth: g = g_0 times (1 - d/r) .

• Escape velocity is discussed as the minimum velocity required for an object to escape Earth's gravitational pull, represented by v = sqrt2gm/r .

Mechanical Properties of Solids and Fluids

Young's Modulus

• Young's modulus formula is introduced: Y = F/(A cdot Delta L/L_0) , where F is force applied, A is cross-sectional area, and ΔL is change in length.

Fluid Mechanics Predictions

• Anticipated questions from fluid mechanics may involve continuity equation or Bernoulli’s equation.

• Continuity equation states A_1V_1 = A_2V_2 .

• Bernoulli’s equation maintains that pressure + potential energy per unit volume + kinetic energy per unit volume remains constant.

Thermodynamics Fundamentals

First Law of Thermodynamics

• The first law states that heat added to a system results in either a change in internal energy or work done by the system. This can be expressed as Q = U + W .

Thermodynamic Processes Overview

• Key thermodynamic processes include:

• Isobaric,

• Isochoric,

• Adiabatic,

• Isothermal.

Degrees of Freedom in Gases

Understanding Degrees of Freedom

• Different gases have varying degrees of freedom:

• Monoatomic gas has 3 degrees,

• Diatomic gas has 5 degrees,

• Triatomic gas has 6 degrees.

Specific Heat Capacities

• Specific heat capacities are defined as:

• C_V = F/2R ,

• C_P = F/2R + R .

Harmonic Motion and Wave Frequency

Organ Pipe Frequencies

• For open organ pipes (open at both ends), frequency can be calculated using the formula: f = nv/12 , where n represents harmonic number and v denotes wave velocity.

Understanding Harmonics and Electric Fields

Harmonics in Organ Pipes

• The wavelength of sound in an organ pipe is related to its length, with 'n' representing the harmonic number.

• For a closed-end organ pipe, the frequency formula is given by f = (2n - 1)v/4l , where 2n - 1 indicates the harmonic.

Electric Field Concepts

• Understanding electric fields requires knowledge of electrostatics; for instance, the electric field due to an infinitely long wire can be calculated using specific formulas.

• The perpendicular and parallel components of electric fields from wires are derived from angles formed at both ends.

Formulas for Electric Fields

• The formula for the electric field due to a ring is E = kqx/(r^2 + x^2)^3/2 .

• Inside a hollow sphere, the electric field is zero, while on its surface it follows E = KQ/R^2 .

Potential Energy and Current Electricity

• The potential energy between two charges q_1 and q_2 , separated by distance r , is given by U = kq_1q_2/r .

• In series circuits, resistances add directly; in parallel circuits, they combine inversely.

Magnetic Fields and Induction

Magnetic Field Calculations

• The magnetic field can vary based on shape; for example, at point P near a ring or straight wire, different formulas apply depending on geometry.

Motion of Charged Particles

• When charged particles move perpendicularly through a magnetic field, their path radius can be crucial for problem-solving.

Electromagnetic Induction Principles

• Magnetic flux ( B.A ) leads to induced EMF when differentiated over time—this principle underlies Faraday's law.

AC Circuits and Resonance

AC Circuit Dynamics

• An LCR circuit consists of an inductor (L), capacitor (C), and resistor (R); resonance occurs when inductive reactance equals capacitive reactance.

Understanding Key Physics Formulas

Importance of Frequency and Basic Formulas

• The speaker discusses the relationship between frequency and formulas, indicating that instead of using omega (ω), one can use 2π. The formula for frequency derived is f = 1/2pi sqrtlc .

• Emphasizes the significance of two critical formulas in ray optics: the refraction formula and the lens maker's formula, which are expected to appear in upcoming exams.

Modern Physics Insights

• Highlights that questions related to Einstein's photoelectric equation have been consistently included in exams over the past eight years, stressing its importance.

• Discusses Bohr's atomic model, mentioning key formulas for radius, velocity, total energy, and angular momentum ( L = nh/2pi ), which are frequently tested.

Wave Properties and Spectra

• Notes that de Broglie's wavelength formula ( lambda = h/p ) is crucial as questions on this topic arise annually.

• Mentions various series in hydrogen spectrum (Lyman, Balmer, Paschen, Brackett, Pfund), introducing the Rydberg formula 1/lambda = Rz^2(1/n_1^2 - 1/n_2^2) .

Nuclear Physics Fundamentals

• Introduces mass defect calculations with a specific formula involving protons and neutrons:

• Mass defect = Total mass of protons + neutrons - Actual nucleus mass.

• Explains how energy released from mass defect can be calculated using E = Δm × 931.5 MeV/c^2 .

Exam Preparation Strategy

• The speaker predicts at least 15 out of 25 discussed formulas will appear on tests based on historical data.

• Encourages students to comment on their understanding of these formulas to gauge their preparedness for upcoming assessments.

Future Learning Sessions

• Plans for an intensive session covering important topics from both 11th and 12th-grade physics are announced.

• Offers to teach all 25 key formulas thoroughly along with practice questions to ensure comprehensive understanding before exams.

This structured overview captures essential insights from the transcript while providing clear timestamps for reference.

Session Announcement for 25 Most Important Formulas

Overview of the Proposed Session

• The speaker proposes a session focused on important formulas, anticipating it to last around 8 hours. They plan to engage participants with questions about each formula.

• A specific date is mentioned: January 12th, when the session will take place if enough interest is shown through comments from students.

• The session aims to cover 25 essential formulas in detail, including proper derivations and practice questions for better retention.

Engagement and Participation

• The speaker emphasizes the need for student enthusiasm and participation through comments to confirm their interest in the session.

• New subscribers are encouraged to join the channel to avoid missing out on future sessions that could significantly impact their exam preparation.

Importance of Subscription

• Students are reminded that subscribing to the channel is free and crucial for receiving notifications about upcoming sessions.

• The speaker highlights the importance of likes and engagement from viewers, indicating that a strong response can lead to more effective learning experiences during live sessions.