30 cm length of the wire gives note of frequency 300 Hz when plucked in the middle . What length of the wire will produce a note a frequency 400 Hz fo

Question

30 cm length of the wire gives note of frequency 300 Hz when plucked in the middle . What length of the wire will produce a note a frequency 400 Hz fo

30 cm length of the wire gives note of frequency 300 Hz when plucked in the middle . What length of the wire will produce a note a frequency 400 Hz for constant tension ?
A. 15cm
B. 22.5cm
C. 45cm
D. 60cm

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 - B
`l_2/l_1 =n_2/n_1 therefore l_2 = (30xx300)/(400) = 22.5cm`

4 views Answered 2023-02-05 15:29