40. The interatomic distance for a metal is
40. The interatomic distance for a metal is 3×10-10 m . If the interatomic force constant is 3.6×10–9 N/Å , then the Young’s modulus in N/m2 will be
(a) 1.2×1011 (b) 4.2×1011
(c) 10.8×10-19 (d) 2.4×1010
Answer-a
(10)
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(a) – 5 J (b) – 10 J (c) – 15 J (d) – 20 J Answer-a (123)