JEE Main 28 Jan 2026 Shift 2 Paper Solved Paper

Section: Physics

Question : 30 of 75

Marks: +1, -0

The speed of a longitudinal wave in a metallic bar is 400m∕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 ____ m∕s.

[28 Jan 2026 Shift 2]

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