Hindi meritnation experts plz transfer this doubt to science meritnation experts as they are not answering my doubts??kindly transfer them science meritnation experts what do you mean by source of sound???also how to find wavelength as many meritnation experts are telling wavelength is 50cm or.100 cm which is correct ans i need with reason and explanation plz????
मित्र, हम हिन्दी के विशेषज्ञ हैं, कृपया हिन्दी से सम्बन्धित प्रश्नों के उत्तर मांगे।