JEE Mains · Physics · STD 11- 8. mechanical properties of solids
If the length of a wire is made double and radius is halved of its respective values. Then, the Young's modules of the material of the wire will :
- A Remains same
- B Become \(8\) times its initial value
- C Become \(\frac{1^{\text {th }}}{4}\) of its initial value
- D Become \(4\) times its initial value
Answer & Solution
Correct Answer
(A) Remains same
Step-by-step Solution
Detailed explanation
\(Y\) depends on material of wire
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- A solid sphere is rolling without slipping on a horizontal plane. The ratio of the linear kinetic energy of the centre of mass of the sphere and Rotational Equilibrium is :JEE Mains 2025 Hard
- An oil drop of radius \(2\, mm\) with a density \(3\, g\) \(cm ^{-3}\) is held stationary under a constant electric field \(3.55 \times 10^{5}\, V\, m ^{-1}\) in the Millikan's oil drop experiment. What is the number of excess electrons that the oil drop will possess ? (consider \(\left. g =9.81\, m / s ^{2}\right)\)JEE Mains 2021 Hard
- A particle of mass ' \(m\) ' and charge ' \(q\) ' is fastened to one end ' \(A\) ' of a massless string having equilibrium length \(l\), whose other end is fixed at point ' \(O\) '. The whole system is placed on a frictionless horizontal plane and is initially at rest. If uniform electric field is switched on along the direction as shown in figure, then the speed of the particle when it crosses the x -axis is
JEE Mains 2025 Hard - Choose the correct statement for processes \(A\) & \(B\) shown in figure.
JEE Mains 2024 Hard - A radioactive sample disintegrates via two independent decay processes having half lives \(T _{1 / 2}^{(1)}\) and \(T _{1 / 2}^{(2)}\) respectively. The effective half- life \(T _{1 / 2}\) of the nuclei isJEE Mains 2021 Medium
- For the circuit shown below, the current through the Zener diode is......\(mA\)
JEE Mains 2019 Medium
More PYQs from JEE Mains
- A single slit of width \(0.1\, mm\) is illuminated by a parallel beam of light of wavelength \(6000\,\mathop A\limits^o \) and diffraction bands are observed on a screen \(0.5\, m\) from the slit. The distance of the third dark band from the central bright band is........\(mm\)JEE Mains 2017 Medium
- An object of mass \(0.5\, {kg}\) is executing simple harmonic motion. Its amplitude is \(5\, {cm}\) and time period (T) is \(0.2\, {s} .\) What will be the potential energy of the object at an instant \(t=\frac{T}{4}\) s starting from mean position. Assume that the initial phase of the oscillation is zero. (In \({J}\))JEE Mains 2021 Medium
- A current of \(2\, mA\) was passed through an unknown resistor which dissipated a power of \(4.4\, W\). Dissipated power when an ideal power supply of \(11\, V\) is connected across it isJEE Mains 2019 Medium
- If the system of linear equations \(2x + 2y + 3z = a\) ; \(3x - y + 5z = b\) ; \(x - 3y + 2z = c\) Where \(a, b, c\) are non zero real numbers, has more than one solution, thenJEE Mains 2019 Hard
- Let \(A\) be the region enclosed by the parabola \(y^2=2 x\) and the line \(x=24\). Then the maximum area of the rectangle inscribed in the region \(\mathrm{A}\) is ...........JEE Mains 2024 Hard
- Let the lines \(l_1: \frac{ x +5}{3}=\frac{ y +4}{1}=\frac{ z -\alpha}{-2}\) and \(l_2: 3 x +\) \(2 y+z-2=0=x-3 y+2 z-13\) be coplanar. If the point \(P ( a , b , c )\) on \(l_1\) is nearest to the point \(Q (-\) \(4,-3,2)\), then \(|a|+|b|+|c|\) is equal toJEE Mains 2023 Hard