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A metal rope of density $6 \times 10^{3} k g / m^{3}$ has breaking stress 20 $\times 10^{8} N / m^{2}$ . This rope is used to measure the depth of the sea. Then the depth of the sea that can be measured without breaking is (take g= 10m/ $s^{2}$ )

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detailed solution

Correct option is D

stress inside water is = apparent weigtarea= mg1-dwdsA=20 x 108 lAds1-16gA=20×108⇒l 656×103×10=20×108l=40 km

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A metal rope of density 6×103kg/m3 has breaking stress 20×108N/m2. This rope is used to measure the depth of the sea. Then the depth of the sea that can be measured without breaking is (take g= 10m/s2)

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Ready to Test Your Skills?

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A metal rope of density $6 \times 10^{3} k g / m^{3}$ has breaking stress 20 $\times 10^{8} N / m^{2}$ . This rope is used to measure the depth of the sea. Then the depth of the sea that can be measured without breaking is (take g= 10m/ $s^{2}$ )