The Physics section of the CBSE Class 10 Science paper is often considered the most challenging due to its heavy reliance on numerical problems. With the 2026 Board Exam on the horizon, many students struggle with errors in SI units, mirror/lens formulas, and circuit calculations.
Understanding these "silly mistakes" is the first step toward a high score. To ensure a mistake-free performance on 25 February, we have compiled marathon sessions and revision guides specifically focused on problem-solving accuracy.
Video 1 Complete Class 10 Physics in One Video
This comprehensive session covers the entire Physics syllabus, including Light: Reflection and Refraction, Human Eye, Electricity, and Magnetic Effects of Electric Current. It is designed to help students revisit all major laws—such as Ohm’s Law and Snell’s Law—and understand how they are applied in exam-style questions.
Key Focus: Summary of all chapters and core concepts for numerical-based questions in a single sitting.
Watch the Full Physics Revision:
Video 2 Board Challenge: Complete Physics
The "Board Challenge" session is dedicated to intensive problem-solving. It addresses the most frequently asked numericals and theoretical questions. This video is particularly helpful for students who understand the theory but struggle with the application of formulas in complex scenarios.
Key Focus: High-weightage questions and step-by-step numerical solutions.
Access the Board Challenge Session:
Video 3 Class 10th Science Half Yearly Marathon – Q&A
While labeled for Half Yearly, this marathon is a useful resource for numerical based concept revision and learn mistakes to avoid, as it focuses on the "Question & Answer" format. It tackles tricky conceptual questions and case-based problems that are now a staple of the CBSE Class 10 Science pattern.
Watch the Marathon Q&A Session:
How to Avoid Common Mistakes in Physics Numericals
To score well in the Physics section, keep these expert tips in mind:
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Master the Sign Convention: In the "Light" chapter, a single mistake in the '+' or '-' sign for focal length (f), object distance (u), or image distance (v) can ruin the entire calculation. Remember: u is always negative.
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Standardize SI Units: Ensure all values are in the same system before starting. Convert centimeters (cm) to meters (m) and milliamperes (mA) to Amperes (A) where necessary.
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Draw Ray Diagrams First: Even if not asked, a rough ray diagram for Light numericals can help you predict the nature and position of the image, acting as a "sanity check" for your numerical answer.
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Calculate Resistance Carefully: In Electricity, students often forget to take the reciprocal when calculating total resistance in a parallel circuit ($\frac{1}{R_p}$). Always double-check this step.
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Show All Steps: CBSE awards step-wise marks. Even if your final answer is slightly off due to a calculation error, showing the correct formula and substitution will save most of your marks.
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Unit Finality: Never leave a numerical answer without its unit (e.g., Watts, Volts, Ohms, or Dioptre).
By focusing on these specific areas and utilizing the revision videos provided, students can approach the CBSE Class 10 Science Board Exam 2026 with confidence and precision.