o Level Physics s

What is meant by work function (2) - answer-Minimum energy required by an electron to escape from (1) a metal surface (1) What is meant by ionisation energy? (2) - answer-Minimum energy required to remove an electron from an atom (1) from the ground state (1) Why do emitted electrons have a ki...

Alternating current equation - answer-I = I0 sin ωt Define the rms value of an alternating current - answer-equal to the steady direct curent which converts electrical energy to other forms of energy at the same rate and conditions Irms = ? - answer-I0/√2 Transformer equation - answer-Vs...

distance - answer-Total length covered irrespective of the direction of motion displacement - answer-Distance moved in a certain direction from start to end point speed - answer-Distance travelled per unit time velocity - answer-the rate of change of displacement acceleration - answer-th...

acceleration - answer-Rate of change of velocity. Vector quantity Acceleration of free fall - answer-Rate of change of velocity of object falling in a gravitational field air resistance - answer-Drag/resistive force experienced by objects moving through air Ammeter - answer-Device used to m...

Rest Mass of Proton in eV and MeV - answer-938 x 10^-6 eV and 938MeV Rest Mass of Electron in eV and MeV - answer-0.51 x 10^-6 and 0.51MeV Definition of Isotope - answer-Same Proton Number and Different Nucleon Number Mass of Proton/Neutron and Electron - answer-1.67x10^-27 and 9.11x10^-31 ...