Radiation Radiation Gamma rays, Inverse Square Law, speed of light in a vacuum, Diffraction, magnetic flux, Maxwell’s equations, Intensity 1 / 10 What type of radiation has the shortest wavelength? Gamma rays X-rays Ultraviolet rays Infrared rays 2 / 10 Which law explains the relationship between the intensity of radiation and the distance from the source? Snell’s Law Planck’s Law Stefan-Boltzmann Law Inverse Square Law 3 / 10 What is the speed of light in vacuum? 3 x 10^8 m/s 2 x 10^8 m/s 1.5 x 10^8 m/s 3.5 x 10^8 m/s 4 / 10 Which phenomenon demonstrates the wave nature of light? Diffraction Photoelectric effect Compton scattering Blackbody radiation 5 / 10 What is the charge of an electron? 0 C +1.6 x 10^-19 C -1.6 x 10^-19 C +1 C 6 / 10 What is the unit of magnetic flux? Henry Tesla Weber Farad 7 / 10 Which equation relates electricity and magnetism? Maxwell’s equations Ohm’s law Kirchhoff’s laws Faraday’s law of induction 8 / 10 A sample initially contains 200 mg of a radioactive isotope with a half-life of 2 hours. How much of the isotope remains after 6 hours? 25mg 50mg 75mg 100mg 9 / 10 A Geiger counter measures 80 counts per second from a radiation source at 2 meters. What would the count rate be at 4 meters? 10 counts per second 40 counts per second 60 counts per second 20 counts per second 10 / 10 A radioactive sample shows a count rate of 1200 decays per second. If the half-life is 3 hours, what is the count rate after 9 hours? 600 decays per second 300 decays per second 150 decays per second 75 decays per second Your score is By WordPress Quiz plugin
