1
VITEEE 2021
MCQ (Single Correct Answer)
+1
-0

The Young's modulus of a rope of $$10 \mathrm{~m}$$ length and having diameter of $$2 \mathrm{~cm}$$ is $$200 \times 10^{11} \mathrm{~dyne} / \mathrm{cm}^2$$. If the elongation produced in the rope is $$1 \mathrm{~cm}$$, the force applied on the rope is

A
$$6.28 \times 10^5 \mathrm{~N}$$
B
$$6.28 \times 10^4 \mathrm{~N}$$
C
$$6.28 \times 10^4$$ dyne
D
$$6.28 \times 10^5$$ dyne
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