Directions : Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
(a) Assertion is correct, reason is correct; reason is a correct explanation for assertion.
(b) Assertion is correct, reason is correct; reason is not a correct explanation for assertion
(c) Assertion is correct, reason is incorrect
(d) Assertion is incorrect, reason is correct.
Assertion : The stress-strain graphs are shown in the figure for two materials \( \mathrm{A} \) and \( \mathrm{B} \) are shown in figure. Young's modulus of \( \mathrm{A} \) is greater than that of \( \mathrm{B} \).
Reason : The Young's modules for small strain is,
\( \mathrm{Y}=\frac{\text { stress }}{\text { strain }}= \) slope of linear portion, of graph; and slope of
\( \mathrm{A} \) is more than slope that of \( \mathrm{B} \).
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