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Waves question

2012 · Q169

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PYQ Library
NEET
Physics
Waves
2012 · Q169

Waves question

2012 · Q169

NEETPhysicsWavesMCQ+4 / −1

When a string is divided into three segments of length

l

₁,

l

₂ and

l

₃ the fundamental frequencies of these three segments are

{\upsilon _1},{\upsilon _2}

and

{\upsilon _3}

respectively. The original fundamental frequency (

v

) of the string is

A
$\sqrt v = \sqrt {{v_1}} + \sqrt {{v_2}} + \sqrt {{v_3}}$
B
$v = {v_1} + {v_2} + {v_3}$
C
${1 \over v} = {1 \over {{v_1}}} + {1 \over {{v_2}}} + {1 \over {{v_3}}}$
D
${1 \over {\sqrt v }} = {1 \over {\sqrt {{v_1}} }} + {1 \over {\sqrt {{v_2}} }} + {1 \over {\sqrt {{v_3}} }}$

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