A fixed volume of iron is drawn into a wire of length l. The extension x produced in this wire by a constant force F is proportional to

l

$\frac{1}{l}$

$l^{2}$

$\frac{1}{l^{2}}$

Solution

$l^{2}$

Young's mosulous= $\frac{s t r e s s}{s t r a i n} = \frac{\frac{F}{A}}{\frac{∆ l}{l}}$ ...(l-length , $∆ l$ -change in length)

$∆ l = (\frac{F}{YA}) l V = Al \Rightarrow A = \frac{V}{l} \Rightarrow ∆ l^{2} = (\frac{F}{YV}) l^{2} \Rightarrow ∆ l \propto \frac{1}{V} l^{2} \propto l^{2} . . . . F = c o n s \tan t; Y = c o n s \tan t$

Graph between l and $∆ l$ is straight line.

For Daily Free Study Material Join wiredfaculty

Mechanical Properties Of Fluids

A fixed volume of iron is drawn into a wire of length l. The extension x produced in this wire by a constant force F is proportional to

l

$\frac{1}{l}$

$l^{2}$

$\frac{1}{l^{2}}$

Some More Questions From Mechanical Properties of Fluids Chapter

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Phone Number

Email Address

Loaction

For Daily Free Study Material Join wiredfaculty

Mechanical Properties Of Fluids

A fixed volume of iron is drawn into a wire of length l. The extension x produced in this wire by a constant force F is proportional to l 1l l2 1l2

Some More Questions From Mechanical Properties of Fluids Chapter

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

A fixed volume of iron is drawn into a wire of length l. The extension x produced in this wire by a constant force F is proportional to

l

$\frac{1}{l}$

$l^{2}$

$\frac{1}{l^{2}}$