Daily Archives: October 16, 2017

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Physics general knowledge Notes


Physics Notes For Competitive Exams Speed of Sound Speed of sound depends on what factors ? Factors which influence speed of sound are Temperature Pressure Effect of density Effect of humidity Temperature    The speed of sound is directly proportional to temperature of air     V α √T     […]

Physics general knowledge Notes


Physics Notes for Competitive Exams SOUND Sound is form of energy emitted by the vibrating particles and propagates in form of waves in all possible directions. Sound neither be generated nor propagated in vacuum where material medium is absent. This phenomenon is proved by Robert Boyle with glass jar experiment. […]