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Waves question

2014 · Q158
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Waves question

2014 · Q158

NEETPhysicsWavesMCQ+4 / −1
If n1, n2 and n3 are the fundamental frequencies of three segments into which a string is divided, then the original fundamental frequency n of the string is given by
  1. A
    1n=1n1+1n2+1n3{1 \over n} = {1 \over {{n_1}}} + {1 \over {{n_2}}} + {1 \over {{n_3}}}n1​=n1​1​+n2​1​+n3​1​
  2. B
    1n=1n1+1n2+1n3{1 \over {\sqrt n }} = {1 \over {\sqrt {{n_1}} }} + {1 \over {\sqrt {{n_2}} }} + {1 \over {\sqrt {{n_3}} }}n​1​=n1​​1​+n2​​1​+n3​​1​
  3. C
    n=n1+n2+n3\sqrt n = \sqrt {{n_1}} + \sqrt {{n_2}} + \sqrt {{n_3}}n​=n1​​+n2​​+n3​​
  4. D
    n === n1 + n2 + n3
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