MHT CET 2020 16th October Morning Shift | Elasticity Question 7 | Physics

Two rods of same material and volume having circular cross-section are subjected to tension $$T$$. Within the elastic limit, same force is applied to both the rods. Diameter of the first rod is half of the second rod, then the extensions of first rod to second rod will be in the ratio

$$4: 1$$

$$32: 1$$

$$16: 1$$

$$2: 1$$

MHT CET 2019 3rd May Morning Shift

MCQ (Single Correct Answer)

-0

For homogeneous isotropic material, which one of the following cannot be the value of Poisson's ratio?

0.1

$-$1

0.5

0.8

MHT CET 2019 3rd May Morning Shift

MCQ (Single Correct Answer)

-0

A wire of length $L$ and radius $r$ is rigidly fixed at one end. On stretching the other end of the wire with a force $F$, the increase in length is $I$. If another wire of the same material but double the length and radius is stretched with a force $2 F$, then increase in length is

$\frac{l}{4}$

$2l$

$\frac{l}{2}$

$l$

MHT CET 2019 2nd May Evening Shift

MCQ (Single Correct Answer)

-0

A wire of length ' $L$ ' and area of cross section ' $A$ ' is made of material of Young's modulus ' $r$. It is stretched by an amount ' $x$ '. The work done in stretching the wire is

$\frac{Y x^2 A}{2 L}$

$\frac{2 Y x^2 A}{L}$

$\frac{Y \times A}{2 L}$

$\frac{Y x^2 A}{2}$

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