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14. waves and sound — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics14. waves and sound1 Mark
MCQ
For a solid rod, the Young's modulus of elasticity is $3.2 \times 10^{11}\,Nm ^{-2}$ and density is $8 \times 10^3\,kg\,m ^{-3}$. The velocity of longitudinal wave in the rod will be $......... \times 10^{3}\,ms^{-1}$
  • A
    $145.75$
  • B
    $3.65$
  • C
    $18.96$
  • ✓
    $6.32$
✓

Answer

Correct option: D.
$6.32$
d

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