$A$ bob of mass $10\, kg$ is attached to a wire $0.3\, m$ long. Its breaking stress is $4.8 \times 10^7\, N/m^2$. The area of cross-section of the wire is $10^{-6}\, m^2$. The maximum angular velocity with which it can be rotated in a horizontal circle is ....... $rad/sec$.
- A$8$
- B$4$
- C$2$
- D$1$
Explore More
Similar Questions
Which of the following statements is incorrect?
Medium
View SolutionOne end of a wire of $8 \,mm$ radius and $100 \,cm$ length is fixed and the other end is twisted through an angle of $45^{\circ}$. The angle of shear is (in $^{\circ}$)
$A$ substance breaks down by a stress of $10^6 \ N/m^2$. If the density of the material of the wire is $3 \times 10^3 \ kg/m^3$,then the length of the wire of the substance which will break under its own weight when suspended vertically,is ......... $m$.
Medium
View Solution$Assertion :$ Solids are least compressible and gases are most compressible.
$Reason :$ Solids have a definite shape and volume,but gases do not have either a definite shape or a definite volume.
$Reason :$ Solids have a definite shape and volume,but gases do not have either a definite shape or a definite volume.
Match the type of elasticity involved:
System Type of Elasticity $(i)$ Suspension fibre of galvanometer $(a)$ Linear $(ii)$ Bending of beam $(b)$ Shear $(iii)$ Cutting piece of paper $(c)$ Bulk $(iv)$ Mechanical waves in fluid $(d)$ Shear
| System | Type of Elasticity |
|---|---|
| $(i)$ Suspension fibre of galvanometer | $(a)$ Linear |
| $(ii)$ Bending of beam | $(b)$ Shear |
| $(iii)$ Cutting piece of paper | $(c)$ Bulk |
| $(iv)$ Mechanical waves in fluid | $(d)$ Shear |
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo