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JEE MAIN 2020
07-01-20 S1
Question
Speed of transverse wave on a straight wire (mass 6.0 g , length 60 cm and area of crosssection 1.0 $\mathrm{mm}^2$ ) is $90 \mathrm{~ms}-1$. If the Young's modulus of wire is $16 \times 10^{11} \mathrm{Nm}^{-2}$, the extension of wire over its natural length is:
Select the correct option:
A
0.01 mm
B
0.02 mm
C
0.04 mm
D
0.03 mm
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
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