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A string is stretched between two fixed points separated by 75cm. It is observed to have resonant frequencies of 420Hz and 315Hz. There are no other resonant frequencies between these two. The lowest resonant frequency for this string is a)105hz b)155hz c)205hz d)10.5hz. show solution plz?
Verified Answer
A string is stretched between two fixed points separated by 75cm. It i...
Given l = 75 cm, f1 = 420 Hz and f2 = 315 HzAs two consecutive resonant frequencies for a string fixed at both ends will be:f1 = nv/2l = 315 and f2 = (n+1)v/2l = 420;f2-f1 = 420-315So, (n+1)v/2l - nv/2l = 105 Hz Hence, v/2l = 105 Hz.Thus, lowest resonant frequency of a string is 105 Hz.
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Most Upvoted Answer
A string is stretched between two fixed points separated by 75cm. It i...
(A)105Hz suppose lowest or fundamental frequency is vthan, n×v= 315-------(1) and (n+1)×v= 420-----(2)by solving this equations you will get answer.
Community Answer
A string is stretched between two fixed points separated by 75cm. It i...
420=n+1
315=n
on dividing we get n= 3
this means 315 /3 we get 105 which is the lowrst frequency
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A string is stretched between two fixed points separated by 75cm. It is observed to have resonant frequencies of 420Hz and 315Hz. There are no other resonant frequencies between these two. The lowest resonant frequency for this string is a)105hz b)155hz c)205hz d)10.5hz. show solution plz?
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A string is stretched between two fixed points separated by 75cm. It is observed to have resonant frequencies of 420Hz and 315Hz. There are no other resonant frequencies between these two. The lowest resonant frequency for this string is a)105hz b)155hz c)205hz d)10.5hz. show solution plz? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A string is stretched between two fixed points separated by 75cm. It is observed to have resonant frequencies of 420Hz and 315Hz. There are no other resonant frequencies between these two. The lowest resonant frequency for this string is a)105hz b)155hz c)205hz d)10.5hz. show solution plz? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A string is stretched between two fixed points separated by 75cm. It is observed to have resonant frequencies of 420Hz and 315Hz. There are no other resonant frequencies between these two. The lowest resonant frequency for this string is a)105hz b)155hz c)205hz d)10.5hz. show solution plz?.
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