Physics Quiz (SSS3) Hi, Test your knowledge with our Physics questions! 1 / 20 The type of semiconductor doping that adds extra electrons is called ______. extrinsic n-type p-type intrinsic 2 / 20 The property of a nucleus that determines its stability is its ______. charge neutron-to-proton ratio density size 3 / 20 The unit of capacitance is the ______. henry tesla farad ohm 4 / 20 The velocity of light in a vacuum is approximately ______. 3.0 × 10⁸ m/s 3.0 × 10⁵ m/s 3.0 × 10⁷ m/s 3.0 × 10⁶ m/s 5 / 20 The rate of radioactive decay is measured using the quantity called ______. activity half-life frequency all of the above 6 / 20 Which law states that the induced electromotive force in a coil is proportional to the rate of change of magnetic flux linkage? Coulomb’s law Ohm’s law Lenz’s law Faraday’s law 7 / 20 The energy of a photon is directly proportional to its ______. frequency amplitude wavelength speed 8 / 20 The distance covered per unit time is called ______. acceleration displacement velocity speed 9 / 20 The electronvolt (eV) is a unit of ______. power charge energy force 10 / 20 The magnetic field inside a long solenoid is ______. non-uniform zero none of the above uniform and strong 11 / 20 In the photoelectric effect, increasing the intensity of incident light ______. decreases the number of emitted electrons increases the kinetic energy of emitted electrons increases the number of emitted electrons increases the work function 12 / 20 Which of the following represents Ohm’s law? V = I²R V = IR P = IV I = VR 13 / 20 The SI unit of magnetic flux is the ______. weber gauss henry tesla 14 / 20 When a light ray passes from air to glass, it bends towards the ______. reflected ray normal air surface 15 / 20 A transformer that increases voltage is called a ______ transformer. step-down isolating step-up power 16 / 20 The half-life of a radioactive isotope is ______. the time taken for the isotope to decay completely the time taken for half of the radioactive nuclei to decay the time taken for the isotope to become stable the time taken for the isotope to double in mass 17 / 20 The force between two charges is inversely proportional to the square of the ______. difference of the charges sum of the charges product of the charges distance between the charges 18 / 20 The phenomenon in which electrons are emitted from a metal surface when light of certain frequency shines on it is called ______. thermionic emission photoelectric effect fluorescence phosphorescence 19 / 20 The unit of electric field strength is ______. newton newton per coulomb (N/C) volt ampere 20 / 20 The binding energy of a nucleus is the energy required to ______. ionize the nucleus separate the nucleus into its constituent nucleons increase the mass of the nucleus break the nucleus into protons only Your score isThe average score is 63% 0% Restart quiz
