Formula Sheet CLASS 11 PHYSICS @Ncertkaksha ragout
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KAKSHA NCERT Bhaiya ♥ Didi always with you 14RSOD NOMDa ONLY THEORY 14nits andasucement Determination of Radius ofatom r = VM Ys v = volume M = Molecular weight using avogadio Hypothesis 2πNm N:Avogadeo's No. Diameter of Moon D: SO O:Angle ofDeviation Angle = curve Radius Absolute Error an = amean-an amean: ai/n i = 1 Mean Absolute Error Samean *a=1y10ail 2 Relative or Fractional Error = Δ a mean a = a mean Δ a mean a mean Percentage Error ba:Namean x 100% a mean Error in addition and subtraction may SA + B Error in Multiplication and Division Δ z = * A z max A +NB= Error in a power ofmeasured quantity If2 = AM Ifz = mB 10 = mXA (5) max mzA+ naB + p e Experimental %Error Real Value - Experimental Value x 100% Real Value SI Base quantities and unit Base quantity Name mass Kg 1 Length Meter 1 M Time second S Electric A isintensize Thermodynamic Temperature ioaransenet Kelvin K ↓ Amount ofsubstance contribution - -r Vaishali Saini 1 Basant Saini Umesh saint &
KAKSHA NCERT ↑otion in a stimaright dime speed v = 5 Average speed v = Δs Δt Average velocity far Instantaneous speed v = lim ΔS = ds s = displacement, t=time Δt -0Δt dt v = initial velocity u = final velocity Instantaneous velocity F = im5 = te Acceleration a = Δv Δt Far = i+ F OR -= v,t, + vitc 2 t, + t2 Instantaneous Acceleration a = A(F)0Ra at = B Equations of Motion on Equations ofKinematics 1. v = 0. + at 2.s = vot + bath 3.p2 = v- + 2aS (velocity-time Relation) (Position.Time Relation (position - velocity relation) (t = 0) Equation ofMotion when particle start from initial position's, 2. v = vo + at 2. s = S0 +vt + 1at2 3.v = v + 2a(SS) Motion under gravity (A) When down to up s:h, a = g 1. V = po-gt2.h = vt -Igt 5.p=r.2gh (B) When up to down s = h,a = g 9. v = v. + gt 2.h = vot + gtz 3.pz = v. + 2gh stopping distance ofvehicles ds =- v 2a Distance traveled in nth see XS = vo + a(2n-1) Relative velocityAto B TAB = TA-FB VaB = A+B Th = - TBA objectmore in the opposite direction) ·NcertKaksha | Umesh Saini 14a