Describe an activity to show that sound needs a medium to travel. !
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read this blue box hope this help you
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Thanks divyanshu
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A sound wave needs a medium to travel. A sound wave travels in the form of a longitudinal wave and itrequires a material medium for its propagation. Sound always originates from some vibrating body. ... The bell jar experiment is a commonexperiment used to demonstrate that sound needs a medium to travel
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