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JEE MAIN_2026
_280126_S2
Question
The speed of a longitudinal wave in a metallic bar is $400 \mathrm{~m} / \mathrm{s}$. If the density and Young's modulus of the bar material are increased by $0.5 \%$ and $1 \%$, respectively then the speed of the wave is changed approximately to $\_\_\_\_$ $\mathrm{m} / \mathrm{s}$.
Select the correct option:
A
401
B
399
C
398
D
402
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
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