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QAIPM-2001-Ph-2903: NEET 2001 Physics - Class 11 AIPM-2001-Ph-2903 Solution: If the tension and diameter of a sonometer wire of fundamental…
If the tension and diameter of a sonometer wire of fundamental frequency n is doubled and density is halved then its fundamental frequency will become
Multiple Choice Options
- A
- B
- C n
- D
Step-by-Step Verified Solution
n = 1 2 l T � r 2 _
_ 1 _ = _ 2 ; T _ = 2 T
D' = 2D or r' = 2r
n _ = 1 2 l 2 T � ( 2 r ) 2 _ 2
After solving, n _ = 1 2 l 2 T � r 2 l = n