UPSC CSE Prelims Physics Notes 1
Physics Notes for UPSC CSE Prelims A seismograph , developed in 1890, is an instrument used to detect and record earthquakes. It comprises a mass affixed to a stationary base, with the base shifting during seismic activity while the mass remains still. This relative motion is typically converted into an electrical voltage, which is then recorded on various mediums such as paper or magnetic tape. The seismic record can be translated mathematically to represent the absolute ground motion. Earthquakes, stemming from sudden shifts in the earth's crust, generate seismic waves. They occur naturally or due to human activities, with tectonic earthquakes arising from rock displacement along fault planes, and volcanic earthquakes stemming from violent volcanic eruptions. Richter scale used to measure the magnitude of an earthquake. National Earthquake Science Data Centre is located in New Delhi. Polyvinyl Chloride (PVC) Electric wires are indeed coated with polyvinyl chloride (PVC), which serv…
