8.Mechanical Properties of Solids
easy

તારનો યંગ મોડ્યુલસ $ Y$ અને એકમ કદ દીઠ ઉર્જા $E$ હોય તો વિકૃતિ કેટલી થાય $?$

A

$\sqrt {\frac{{2E}}{Y}} $

B

$\sqrt {2EY} $

C

$EY$

D

$\frac{E}{Y}$

Solution

(a) Energy per unit volume $ = \frac{1}{2} \times {\rm{Y}} \times {({\rm{strain)}}^{\rm{2}}}$

$\therefore {\rm{strain}} = \sqrt {\frac{{{\rm{2}}E}}{Y}} $

Standard 11
Physics

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