Unit 2 • Class 11Physics (Grade 11) (Phy.101)
Vectors
भ्याक्टर
Triangle and parallelogram laws of vector addition, resolution into rectangular components, scalar dot product, vector cross product.
Lesson Summary & Key Concepts
Master vector representations, triangle & parallelogram laws of vector addition, rectangular resolution in 2D and 3D space, scalar dot product, and vector cross product with physical interpretations.
Quick Revision Takeaways
Common Exam Pitfalls to Avoid
⚠️ Common Error: Treating the cross product result as a scalar magnitude.
✓ Correct Approach: Cross product is a vector quantity with direction determined by the right hand rule.
Why: Forgetting the unit normal vector n^ produces a dimensional mismatch in physical derivations.
Content Provenance & Verification
Editorial Verified & Published
Original Author / ContributorNEB Physics Subject Specialist
Verified BySenior Subject Specialist (TU / NEB Panel)
Curriculum Versionv1.0 (CDC 2078/2080 Grid)
Last Verified Date2026-10-23
Legitimate Official Curriculum References
public curriculum
Found an ambiguity, error, or updated syllabus note?