jee_main_2024_30_jan_morning - Mechanical Properties of Solids Topics

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QUESTION #34 Elasticity and Young's Modulus
Young's modulus of material of a wire of length 'L' and cross-sectional area A is Y. If the length of the wire is doubled and cross-sectional area is halved then Young's modulus will be :
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QUESTION #0 Longitudinal Strain on Moving Wires
Each of three blocks P, Q and R shown in figure has a mass of 3 ~kg. Each of the wire A and B has cross-sectional area 0.005 ~cm² and Young's modulus 2 × 10¹¹ Nm⁻². Neglecting friction, the longitudinal strain on wire B is _ _ _ _ × 10⁻⁴. (Take g = 10 m / s²) {{IMG1}}
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

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