🔥 TARGET RE-NEET 2026|Unit, Dimensions & Errors NEET PYQs Part-01 |Complete Physics by Dr. Physics 🚀

🚀 RE-NEET 2026 Physics | Unit, Dimension & Errors PYQ Marathon Part-01 | Dr. Physics 🔥 NEET 2026 Physics PYQs | Units, Dimensions & Errors One Shot Revision | Part-01 💯 Unit, Dimension & Errors NEET PYQ Practice | RE-NEET 2026 Physics Preparation 🎯 NEET 2026 Most Important PYQs | Units & Dimensions + Errors | Dr. Physics ⚡ Score 180/180 Physics | Unit, Dimension & Errors PYQ Session | RE-NEET 2026 Correction. 📌 Question: Each side of a metallic cube of mass 5.580 kg is measured to be 9.0 cm. Keeping the significant figures in view, the density of the material of the cube can be best expressed as X × 10³ kg m⁻³. The value of X is: (A) 7.654 (B) 7.6 (C) 7.65 (D) 7.7 ✅ Correct Answer: (B) 7.6 ━━━━━━━━━━━━━━━━━━━━━━ 📝 Detailed Solution: Given: Mass, m = 5.580 kg Side of cube, a = 9.0 cm = 0.090 m Volume of cube: V = a³ V = (0.090)³ V = 0.000729 m³ Density: ρ = m/V ρ = 5.580 / 0.000729 ρ = 7643.2 kg m⁻³ ρ = 7.6432 × 10³ kg m⁻³ ━━━━━━━━━━━━━━━━━━━━━━ 🎯 Significant Figures Concept: Mass = 5.580 kg → 4 significant figures Side = 9.0 cm → 2 significant figures The final answer must have the same number of significant figures as the quantity with the least number of significant figures. Therefore, the answer should contain only 2 significant figures. 7.6432 → 7.6 Hence, ρ = 7.6 × 10³ kg m⁻³ ✅ X = 7.6 ✔ Correct Option: (B) 🔥 TARGET RE-NEET 2026 PHYSICS SERIES 🔥 Welcome to Part-01 of our NEET Physics PYQ Series! In this lecture, Dr. Physics covers the most important Previous Year Questions (PYQs) from "Units, Dimensions & Errors" – one of the highest-scoring chapters for NEET 2026 aspirants. 📚 Topics Covered: ✅ SI Units & Fundamental Units ✅ Derived Units ✅ Dimensional Formula ✅ Dimensional Analysis ✅ Principle of Homogeneity ✅ Significant Figures ✅ Measurement Errors ✅ Absolute Error ✅ Relative Error ✅ Percentage Error ✅ NEET Previous Year Questions ✅ Exam-Oriented Short Tricks 🎯 Perfect For: ✔ NEET 2026 Aspirants ✔ RE-NEET 2026 Students ✔ Class 11 Physics Students ✔ Class 12 Physics Revision ✔ Medical Entrance Exam Preparation 💯 Solve PYQs with detailed explanations and boost your Physics score in NEET 2026. 👉 Don't Forget To: 👍 Like 💬 Comment 📢 Share 🔔 Subscribe for Daily NEET Physics Content #NEET2026 #RENEET2026 #NEETPhysics #PhysicsPYQ #UnitsAndDimensions #ErrorsInMeasurement #NEETPreparation #DrPhysics #PhysicsRevision #NEETPYQ #MedicalEntrance #NEETExam #NEETUG2026 #PhysicsOneShot #DimensionAnalysis #ErrorAnalysis #Class11Physics #Class12Physics #NEETMotivation #PhysicsMarathon NEET 2026, RE NEET 2026, NEET Physics, Physics PYQ, Units and Dimensions, Errors in Measurement, Unit Dimension Error PYQ, NEET Physics PYQ, Dr Physics, Physics Revision, NEET Preparation, NEET UG 2026, Physics One Shot, Measurement Errors, Significant Figures, Dimensional Analysis, Physics MCQ, NEET Physics Questions, Medical Entrance Exam, NEET Top Questions 🚀📈