A sonometer wire carries a brass weight of density 8 gm/cc at its free end and has a fundamental frequency 320 Hz, when the brass weight is completely

Question

A sonometer wire carries a brass weight of density 8 gm/cc at its free end and has a fundamental frequency 320 Hz, when the brass weight is completely

A sonometer wire carries a brass weight of density 8 gm/cc at its free end and has a fundamental frequency 320 Hz, when the brass weight is completely immersed in water , then new frequency will be
A. 340Hz
B. 320Hz
C. 280Hz
D. 300Hz

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - D
`n_1 prop sqrt(T_1) " and " n_2 prop sqrt(T_2)`
Loss of weight `=T_1-T_2 therefore Vrhog = T_1-T_2`
`T_2=T_1 - vrhog`
`n_2/n_1 = sqrt(T_2/T_1) " and " n_2/n_1 = sqrt((rho-rho_1)/(rho))`

4 views Answered 2023-02-05 15:29