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