# Elasticity · Physics · COMEDK

Start Practice## MCQ (Single Correct Answer)

COMEDK 2024 Evening Shift

The temperature of a wire is doubled. The Young's modulus of elasticity

COMEDK 2024 Morning Shift

If the ratio of lengths, radii and Young's Moduli of steel and brass wires in the figure are $$\mathrm{a}, \mathrm{b}$$ and $$\mathrm{c}$$ respectivel...

COMEDK 2023 Morning Shift

Two wire of same material having radius in ratio 2 : 1 and lengths in ratio 1: 2. If same force is applied on them, then ratio of their change in leng...

COMEDK 2023 Morning Shift

Two wires are made of the same material and have the same volume. The first wire has cross-sectional area $$A$$ and the second wire has cross-sectiona...

COMEDK 2023 Evening Shift

A man grows into a giant such that his height increases to 8 times his original height. Assuming that his density remains same, the stress in the leg ...

COMEDK 2023 Evening Shift

A spring of force constant $$k$$ is cut into lengths of ratio $$1:3:4$$. They are connected in series and the new force constant is $$\mathrm{k}$$'. T...

COMEDK 2022

A copper and a steel wire of same diameter are connected end to end. A deforming force F$$_1$$ is applied to the wire which causes an elongation of 1 ...

COMEDK 2022

A force F applied on the wire of radius r and length L and change in the length of the wire is $$l$$. If the same force F is applied on the wire of th...

COMEDK 2021

Within the elastic limit, the corresponding stress is known as

COMEDK 2021

A wire is stretched to double of its length. The strain is

COMEDK 2020

The Poisson's ratio of a material is 0.1. If the longitudinal strain of a rod of this material is $$10^{-3}$$, then the percentage change in the volum...

COMEDK 2020

A steel wire of length 4.7 m and cross-sectional area $$3.0\times10^{-5}$$ m$$^2$$ stretches by the same amount as a copper wire of length 3.5 m and c...