86 Physics By Gk Scientist Nov 20, 2023 An uncharged ping-pong ball is coated with a thin layer of metal and suspended with the help of an insulating string in the narrow region between two metallic and oppositely charged plates. If the ball accidentally touches one of the plates, describe the subsequent motion.
57 Physics By Gk Scientist Nov 20, 2023 A metal has a definite work function. Why do photo-electrons not come out all with the same energy even if irradiated with monochromatic light?
72 Physics By Gk Scientist Nov 20, 2023 What is so special about e/m that we usually measure its value rather than the value of e or m separately.
65 Physics By Gk Scientist Nov 20, 2023 Explain why a discharge tube appears dark when evacuated to a very low pressure.
64 Physics By Gk Scientist Nov 17, 2023 Cosmic rays consist of charged particles. They strike out atmosphere from outer space. It is observed that the intensity of cosmic rays is higher at the poles than the magnetic equator. Explain.
