Does gravity travels instantaneously? Or it travels equal to the speed of light. Answer: No clear answer now. If we believe in the Theory of relativity, Gravity (Gravitational Waves travel with the same speed as that of light in vacuum. If gravitons are like photons, then it makes sense too. However I invite you to think…… Continue reading Does gravity travel instantaneously?
PHYSICS TESTPAPER CLASS XI GRAVITATION AND WAVES Instructions Questions 1 to 5 carries one mark each Questions 5 to 10 carries 2 marks each Questions 10 to 15 carries 3 marks each Questions 16 and 17 carries 5 marks each What are mechanical waves? The time period of a vibrating source producing sound…… Continue reading Class XI Physics Chapter wise Revision Test – Gravitation and Waves
http://www.bbc.co.uk/schools/gcsebitesize/science/edexcel/waves/ http://revise-physics.net/IGCSE/pdf/P9Waves.pdf http://www.gcse.com/waves.htm http://www.physicsclassroom.com/Class/waves/ http://library.thinkquest.org/10796/ Copy – paste the above links on address bar to study waves in detail
Motion & Laws of motion PROPERTIES OF MATTER work rotation gravitation HEAT OSCILLATIONS WAVES
Electrostatics ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT CURRENT ELECTRICITY EM WAVES DUAL NATURE ATOMS AND NUCLEI Ray Optics wave optics SEMICONDUCTOR DEVICES communication system
Electromagnetic Waves is the smallest chapter for Class XII students and CBSE has assigned 3 marks for this chapter. You can download the lecture notes from Electromagnetic Waves here