R.Rajeswari-Physics by rajeswari https://padlet.com/rajeswari_meganathan/67g9wfq92rld X-TRCC(12.12.17) en-us 2017-12-11 07:57:42 UTC 2026-03-11 03:50:38 UTC hello@padlet.com X-TRCC (12.12.17) 1.Why electromagnetic wave does not travel long distance into the earth? 2.How geostationary satellite helpful in communication? rajeswari_meganathan https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/214915319 2017-12-11 08:00:31 UTC https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/214915319 sanjay: sanjaykanth78878 https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215288991 electromagnetic wave does not travel long distance in to earth because you need neutrons for that Radio waves are generated by radio transmitters and received by radio receivers  long waves can diffract around obstacles like mountains and follow the   earth (ground waves), shorter waves can reflect off ...

hello there -- can you explain what  "diffract" means ? Sabita]]> 2017-12-12 06:29:11 UTC https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215288991 Allahbakish: havocbakish786 https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215289155 electromagnetic waves travel  into earth  by radio transmitters generate radio waves and then to the reciever .
Your explanation is not clear.. please clarify in simple words.. thanks sabita.]]> 2017-12-12 06:31:26 UTC https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215289155 sanjay sanjaykanth78878 https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215289978 a geostationary satilite orbits the earth directly over the equatorThis is because it revolves around the earth at the earth's own angular velocity (360 degrees every 24 hours, in an equatorial orbit). A geostationary orbit is useful forcommunications because ground antennas can be aimed at the satellite without their having to track the satellite's motion. it includes satilite tv, satilite phone, gprs tracking divices, etc.
]]> 2017-12-12 06:40:17 UTC https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215289978 Allahbakish: havocbakish786 https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215291492  A geostationary transfer orbit is used to move a satellite from low Earth orbit (LEO) into a geostationary orbit.]]> 2017-12-12 06:53:10 UTC https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215291492 vishwa: vishwavishnu9790 https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215292072 electromegnetic wave does not travel becaues of  no gravition on the earth.

What happened during this class Vishwa - no entries :( Sabita]]> 2017-12-12 06:58:22 UTC https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215292072 sabita_currimbhoy https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215292079 2017-12-12 06:58:27 UTC https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215292079 vishwavishnu9790 https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215292497 2017-12-12 07:01:52 UTC https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215292497 vishwavishnu9790 https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215292503 2017-12-12 07:01:55 UTC https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215292503 no answer havocbakish786 https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215292597 2017-12-12 07:03:19 UTC https://padlet.com/rajeswari_meganathan/67g9wfq92rld/wish/215292597