Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET
Exam
NEET
Subject
Physics
Chapter
Mechanical Properties of Solids

NEET · Physics · Mechanical Properties of Solids

Two wires A and B of same length are made of same material. Load...

Two wires A and B of same length are made of same material. Load (F) vs. elongation (x) graph for these two wires is
Two wires AA and BB of same length are made of same material. Load (F)(F) vs. elongation (x)(x) graph for these two wires is shown in the figure. Then which of the following statement(s) is / are true?

Options

  1. AThe cross-section area of AA is greater than that of BB.
  2. BYoung's modulus of AA is greater than Young's modulus of BB.
  3. CThe cross-sectional area of BB is greater than that of AA.
  4. DYoung's modulus A is more than that of B.

Correct answer

A. The cross-section area of AA is greater than that of BB.

Step-by-step solution

same material have identical Young's Modulus. For a given strain and Young's Modulus. stress in sameFAAA=FBAB⇒FAFB=AAAB as FA>FB,AA>AB\begin{aligned}&\frac{F_A}{A_A}=\frac{F_B}{A_B} \Rightarrow \frac{F_A}{F_B}=\frac{A_A}{A_B}\\ &\text{ as }F_A>F_B, A_A>A_B \end{aligned}
Practice Mechanical Properties of Solids on Quantrex Academy →

More from Mechanical Properties of Solids

Match List I with List II : List I List II A. Young's Modulus I. (Δ d)/(Δ L)((L)/(d)) B.… NEET 2026A metallic bar of Young's modulus, 0.5 × 10^ 11 ~N ~m^ -2 and coefficient of linear… NEET 2024The maximum elongation of a steel wire of 1 m length if the elastic limit of steel and… NEET 2024Let a wire be suspended from the ceiling (rigid support) and stretched by a weight W… NEET 2023The amount of elastic potential energy per unit volume (in SI unit) of a steel wire of… NEET 2023Given below are two statements : One is labelled as Assertion (A) and the other is… NEET 2022A wire of length L , area of cross section A is hanging from a fixed support. The length… NEET 2020Identify the incorrect statement. AIIMS 2019 Full Mechanical Properties of Solids list All NEET PYQs