Work done per second on fluid=Change in KE per second+Change in PE per secondWork done per second on fluid equals Change in KE per second plus Change in PE per second
The following table provides a systematic list of all the essential derivations from the NCERT Class 11 Physics syllabus. Mastering these will build a robust conceptual foundation and equip you to solve complex numerical problems with ease.
Start with the final formula and try to work your way back to the starting principle. Where to Find Downloads all important derivations of physics class 11 pdf download
Pascal’s law and hydrostatic pressure. Terminal Velocity: Stokes’ law application. Bernoulli’s Equation: Excess Pressure: Inside a liquid drop and a bubble. 7. Thermodynamics Work Done in Isothermal Process: Work Done in Adiabatic Process: Efficiency of Carnot Engine: 8. Oscillations and Waves Simple Harmonic Motion (SHM): Expression for time period ( Energy in SHM: Total energy of a particle executing SHM. Speed of Transverse Wave on a String: 💡 How to Download the "All Important Derivations" PDF
m1u1+m2u2=m1v1+m2v2m sub 1 u sub 1 plus m sub 2 u sub 2 equals m sub 1 v sub 1 plus m sub 2 v sub 2 Banking of Roads Work done per second on fluid=Change in KE
(m1+m2)Xcm=m1x1+m2x2⟹Xcm=m1x1+m2x2m1+m2open paren m sub 1 plus m sub 2 close paren cap X sub c m end-sub equals m sub 1 x sub 1 plus m sub 2 x sub 2 ⟹ cap X sub c m end-sub equals the fraction with numerator m sub 1 x sub 1 plus m sub 2 x sub 2 and denominator m sub 1 plus m sub 2 end-fraction Torque and Angular Momentum Relations : . For pure rotation, .Since Moment of Inertia τ=Iαtau equals cap I alpha Angular Momentum ( ) : L=Iωcap L equals cap I omega 5. Gravitation Variation of Acceleration Due to Gravity ( With Altitude ( At Earth's surface:
ΔQ=ΔU+ΔWcap delta cap Q equals cap delta cap U plus cap delta cap W is heat supplied, is change in internal energy, and is work done by the system. Mayer’s Formula ( At constant volume ( At constant pressure ( , from the ideal gas equation at constant pressure. Substitute back: Where to Find Downloads Pascal’s law and hydrostatic
F1=ΔpΔt=2mvx2Lvx=mvx2Lcap F sub 1 equals the fraction with numerator delta p and denominator delta t end-fraction equals the fraction with numerator 2 m v sub x and denominator the fraction with numerator 2 cap L and denominator v sub x end-fraction end-fraction equals the fraction with numerator m v sub x squared and denominator cap L end-fraction Total force from all molecules along the x-axis: .Since molecular motion is isotropic, . Pressure (
For Class 11 Physics, derivations are the backbone of both school finals and competitive exams like JEE/NEET. Mastering these step-by-step proofs ensures you understand the underlying concepts rather than just memorizing formulas. 📚 Chapter-wise Important Derivations