The maximum elongation of a steel wire of 1 m length if the elastic limit of steel and its Young's modulus, respectively, are 8 × 10^8 N/m^2 and 2 × 10^{11} N/m^2, is: (1) 4 mm (2) 0.4 mm (3) 40 mm (4) 8 mm

Correct Answer: A — 4 mmStep-by-step Solution:Stress = Y × strain. At elastic limit, stress = 8 × 10⁸ N/m². So strain = stress / Y = (8 × 10⁸) / (2 × 10¹¹) = 4 × 10⁻³. Elongation ΔL = strain × original length = 4 × 10⁻³ × 1 = 0.004 m = 4 mm.Key Concepts: Young's modulus, elastic limit, strain, elongation.

NEET is a competitive examination conducted in India. This question is from the 2024 NEET Physics paper.

How can I prepare for NEET Physics?

To prepare for NEET Physics, practice previous year questions (PYQs), understand concepts thoroughly, and solve mock tests regularly. This 2024 question covers Mechanical Properties of Solids topic.

What is the difficulty level of this question?

This NEET 2024 Physics question has a easy difficulty level and is marked as an important question and is one of the most repeated questions.

Where can I find more NEET previous year questions?

You can find more NEET previous year questions on AspirantMitraa. Browse by subject, topic, year, and difficulty level to practice effectively.

NEET Physics 2024 - The maximum elongation of a steel...

A metallic bar of Young's modulus 0.5 × 10^{11} N/m^2 and coefficient of linear thermal expansion 10…

EASY2024NEETPhysics

Let a wire be suspended from the ceiling (rigid support) and stretched by a weight W attached at its…

EASY2023NEETPhysics

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason…

EASY2022NEETPhysics

A wire of length L and area of cross-section A is hanging from a fixed support. The length of the wi…

EASY2020NEETPhysics

When a block of mass M is suspended by a long wire of length L, the length of the wire becomes (L + …

EASY2019NEETPhysics

Two wires are made of the same material and have the same volume. The first wire has cross-sectional…

MEDIUM2018NEETPhysics

The maximum elongation of a steel wire of 1 m length if the elastic limit of steel and its Young's modulus, respectively, are 8 × 10^8 N/m^2 and 2 × 10^{11} N/m^2, is: (1) 4 mm (2) 0.4 mm (3) 40 mm (4) 8 mm

Master NEET with Our Test Series

More Questions from Mechanical Properties of Solids

Frequently Asked Questions

The maximum elongation of a steel wire of 1 m length if the elastic limit of steel and its Young's modulus, respectively, are 8 × 10^8 N/m^2 and 2 × 10^{11} N/m^2, is: (1) 4 mm (2) 0.4 mm (3) 40 mm (4) 8 mm

Master NEET with Our Test Series

More Questions from Mechanical Properties of Solids

Frequently Asked Questions