Question

If 'a' is co-efficient of linear expansion; 'b' is coefficient of area expansion; 'c' is coefficient of volume expansion. Which of the following is true : a] b=2a ; b]c=3a ; c] b=3a d] a= 2b.

1) a] and b]

2) b] and c]

3) c] and d]

4) all the above​

Answer 1

Answer:

a] b=2a & b]c=3a ;

is the answer

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