This apparent change in frequency of the wave it due to motion of the source or the observer is called Doppler Effect d. Observer Stationary and Source Moving: Now suppose the observer is at rest with respect to the medium and the source moves towards the observer at a speed u which is less than Read more about Doppler Effect[…]
1. Zero order reactions: ⇒ Order of the reaction is zero. ⇒ The reaction in which the rate of reaction is independent of concentration of the reactants. ⇒ Rate of reaction remains constant during the course of reaction. ⇒ No concentration term in the rate law. A → Products Initially t = 0 a 0 Read more about Integrated Rate Equations[…]
First let us consider a uniform field, for which the lines of force are parallel and equidistance from each other. Let A and B be two points in a uniform electric field of intensity E.Let WAB, be the work done to carry a test charge q0 from A to B. Let the potential at A Read more about Relation between Electric Intensity and Potential[…]
The Nernst equation is used to calculate the voltage of an electrochemical cell or to find the concentration of one of the components of the cell. For the reaction aA + bB → cC + dD Reaction Quotient And ΔG = ΔG° + 2.303 RTlogQ ΔG° = – nFE°cell ΔG = – nFEcell Ecell = E°cell – Read more about Nernst Equation[…]
We know that in the series combination current will be same across all the capacitors and voltage gets divided across themi = c dv/dt => V = ∫ (i/c) dt v = v₁ + v₂ + v₃ ∫ (ieq/ceq) dt = ∫ (i₁/c₁) dt + ∫ (i₂/c₂) dt + … + ∫ (in/cn) dt i Read more about Capacitor in Series and Parallel[…]
If a liquid is filled in a vessel up to height H and a hole is made at a depth h below the free surface of the liquid as shown in figure, then taking the level of hole as reference level (i.e., zero point of potential energy) and applying Bernoulli’s principle to the liquid just Read more about Velocity of Efflux[…]
Phase relationship between displacement, velocity and acceleration of SHM As we have seen that x = A sin (ωt + φ) v = A ω cos (ωt+ φ) = Aω sin (ωt + φ + π/2) And a= – Aω2 sin (ωt + φ) = Aω2 sin (ω t + φ + π) Thus, we Read more about Velocity & Acceleration of SHM[…]
ELECTRODE POTENTIAL AND STANDARD ELECTRODE POTENTIALS Electrons will flow from the electrode of higher negative charge density to the electrode with lower negative electric charge density. A property closely related to the density of negative electric charge is called the electrode potential. Potential difference between the metal and metal ion in which electrode is Read more about Electrode Potential and Standard Electrode Potentials[…]
1. Vapour pressure of liquid-liquid solutions: Raoult’s Law:- The partial pressure of each component in a binary volatile liquid-liquid solution at a given temperature is equal to the mole fraction of that component in the solution multiplied by the vapour pressure of that component in the pure state at same temperature. PA = [nA/ (nA Read more about Vapor pressure of liquid solutions[…]
1. The time period of a simple pendulum is T = 2π √ (l/g) => T α √l or T α 1/√g T α √ (l/g) Using these relations. We may conclude => The graph between T2 and l is a straight line. => The graph between T and l is a parabola. => The Read more about Tips & Tricks of SHM[…]