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Standard XII

Physics

Stress-Strain Graph

Young's modul...

Question

Young's modulus of material of a wire is 200G.Pa.The stress required to produce a strain of $4 \times 10^{- 3}$ in pa is

8 x 10

^{12}

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0.2 x 10

^{- 11}

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5 x 10

^{7}

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8 x 10

^{8}

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Solution

The correct option is A 8 x 10 $^{8}$
$y = 200 G P a = 200 \times 10^{9} N / m^{2}$
$2 \times 10^{11} = \frac{σ}{4 \times 10^{- 3}}$
$σ = 8 \times 10^{8} N / m^{2}$

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Young's modulus of material of a wire is 200G.Pa.The stress required to produce a strain of 4×10−3 in pa is

The correct option is A 8 x 108y=200GPa=200×109N/m22×1011=σ4×10−3σ=8×108N/m2

Young's modulus of material of a wire is 200G.Pa.The stress required to produce a strain of $4 \times 10^{- 3}$ in pa is

The correct option is A 8 x 10 $^{8}$
$y = 200 G P a = 200 \times 10^{9} N / m^{2}$
$2 \times 10^{11} = \frac{σ}{4 \times 10^{- 3}}$
$σ = 8 \times 10^{8} N / m^{2}$