Question

The upper end of a wire of diameter $12\,mm$ and length $1\,m$ is clamped and its other end is twisted through an angle of $30^{\circ}$. The angle of shear is

• A. $18^\circ$
• B. $0.18^\circ$
• C. $36^\circ$
• D. $0.36^\circ$

Answer 1

Answer: (B)

$0.18^\circ$

Answer 2

The correct option is (B): $0.18^\circ$
$r \theta=1 \phi$
$\Rightarrow \phi=\frac{ r \theta}{1}=\frac{6 mm \times 30^{\circ}}{1 m }$
$=0.18^{\circ}$