Let a wire be suspended from the ceiling (rigid support) and stretched by a weight <math> <mi mathvariant="normal">W</mi> </math> attached at its free end. The longitudinal stress at any point of cross-sectional area A of the wire is:

Surface energy of bubble = 2 × charge in surface area × surface tension = 8 π R 2 × T = 8 × 3.142 × 4 × 10 - 4 × 3 × 10 - 2 J = 30.1 × 10 - 5 J <!- [endif]-><!- [endif]->

Let a wire be suspended from the ceiling (rigid support) and stretched by a weight <math> <mi mathvariant="normal">W</mi> </math> &nbsp;attached at its free end. The longitudinal stress at any point of cross-sectional area A of the wire is:

Ask & Answer Question

Physics Class 11th Physics Mechanical Properties of Solids

Let a wire be suspended from the ceiling (rigid support) and stretched by a weight $W$ attached at its free end. The longitudinal stress at any point of cross-sectional area A of the wire is:

Option 1 -

Zero

Option 2 -

$\frac{2 W}{A}$

Option 3 -

$\frac{W}{A}$

Option 4 -

$\frac{W}{2 A}$

3 Views | Posted a month ago

Asked by Shiksha User

1 Answer

Answered by

alok kumar singh | Contributor-Level 10

a month ago

Correct Option - 4

Detailed Solution:

Surface energy of bubble $= 2 \times$ charge in surface area $\times$ surface tension

$\begin{array}{r} = 8 π R^{2} \times T \\ = 8 \times 3.142 \times 4 \times 10^{- 4} \times 3 \times 10^{- 2} J \\ = 30.1 \times 10^{- 5} J \end{array}$

0 Upvotes 0 Downvotes

Get authentic answers from experts, students and alumni that you won't find anywhere else

On Shiksha, get access to

65k Colleges
1.2k Exams
688k Reviews
1800k Answers

Community GuidelinesUser Points System

QuestionsDiscussionsTags

Let a wire be suspended from the ceiling (rigid support) and stretched by a weight $W$ attached at its free end. The longitudinal stress at any point of cross-sectional area A of the wire is:

1 Answer

Learn more about...

Most viewed information

Share Your College Life Experience

Didn't find the answer you were looking for?

Need guidance on career and education? Ask our experts

Your Question

Let a wire be suspended from the ceiling (rigid support) and stretched by a weight W attached at its free end. The longitudinal stress at any point of cross-sectional area A of the wire is:

1 Answer

Learn more about...

Most viewed information

Share Your College Life Experience

Didn't find the answer you were looking for?

Need guidance on career and education? Ask our experts

Your Question

Let a wire be suspended from the ceiling (rigid support) and stretched by a weight $W$ attached at its free end. The longitudinal stress at any point of cross-sectional area A of the wire is: