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